Merge branch 'main' of ssh://git.apoena.dev:22222/remanso-space/remanso

Adds specs for the files added or modified in the recent merge that
weren't yet covered: oauthReturnPath, withATProtoImages, link,
displayLanguage, and the useGitHubContent / useImageUpload /
useNoteFreshness hooks. Locks in the new pullLatest contract
({raw, failureStatus}) and the fetchLatestSha branch semantics
(ok/unauthorized/offline).

.agents/.claude-plugin/plugin.json

@@ -1,8 +0,0 @@
-{
-  "name": "remanso-skills",
-  "version": "1.0.0",
-  "description": "Local skills for the Remanso project",
-  "author": {
-    "name": "julien"
-  }
-}

.agents/skills/migrate-oxlint/SKILL.md

@@ -1,196 +0,0 @@
----
-name: migrate-oxlint
-description: Guide for migrating a project from ESLint to Oxlint. Use when asked to migrate, convert, or switch a JavaScript/TypeScript project's linter from ESLint to Oxlint.
----
-
-This skill guides you through migrating a JavaScript/TypeScript project from ESLint to [Oxlint](https://oxc.rs/docs/guide/usage/linter/).
-
-## Overview
-
-Oxlint is a high-performance linter that implements many popular ESLint rules natively in Rust. It can be used alongside ESLint or as a full replacement.
-
-An official migration tool is available, and will be used by this skill: [`@oxlint/migrate`](https://github.com/oxc-project/oxlint-migrate)
-
-## Step 1: Run Automated Migration
-
-Run the migration tool in the project root:
-
-```bash
-npx @oxlint/migrate
-```
-
-This reads your ESLint flat config (`eslint.config.js` for example) and generates a `.oxlintrc.json` file from it. It will find your ESLint config file automatically in most cases.
-
-See options below for more info.
-
-### Key Options
-
-| Option                      | Description                                                                                                                     |
-| --------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
-| `--type-aware`              | Include type-aware rules from `@typescript-eslint` (will require the `oxlint-tsgolint` package to be installed after migrating) |
-| `--with-nursery`            | Include experimental rules still under development, may not be fully stable or consistent with ESLint equivalents               |
-| `--js-plugins [bool]`       | Enable/disable ESLint plugin migration via `jsPlugins` (default: enabled)                                                       |
-| `--details`                 | List rules that could not be migrated                                                                                           |
-| `--replace-eslint-comments` | Convert all `// eslint-disable` comments to `// oxlint-disable`                                                                 |
-| `--output-file <file>`      | Specify a different output path (default: `.oxlintrc.json`)                                                                     |
-
-If your ESLint config is not at the default location, pass the path explicitly:
-
-```bash
-npx @oxlint/migrate ./path/to/eslint.config.js
-```
-
-## Step 2: Review Generated Config
-
-After migration, review the generated `.oxlintrc.json`.
-
-### Plugin Mapping
-
-The migration tool automatically maps ESLint plugins to oxlint's built-in equivalents. The following table is for reference when reviewing the generated config:
-
-| ESLint Plugin                                       | Oxlint Plugin Name |
-| --------------------------------------------------- | ------------------ |
-| `@typescript-eslint/eslint-plugin`                  | `typescript`       |
-| `eslint-plugin-react` / `eslint-plugin-react-hooks` | `react`            |
-| `eslint-plugin-import` / `eslint-plugin-import-x`   | `import`           |
-| `eslint-plugin-unicorn`                             | `unicorn`          |
-| `eslint-plugin-jsx-a11y`                            | `jsx-a11y`         |
-| `eslint-plugin-react-perf`                          | `react-perf`       |
-| `eslint-plugin-promise`                             | `promise`          |
-| `eslint-plugin-jest`                                | `jest`             |
-| `@vitest/eslint-plugin`                             | `vitest`           |
-| `eslint-plugin-jsdoc`                               | `jsdoc`            |
-| `eslint-plugin-next`                                | `nextjs`           |
-| `eslint-plugin-node`                                | `node`             |
-| `eslint-plugin-vue`                                 | `vue`              |
-
-Default plugins (enabled when `plugins` field is omitted): `unicorn`, `typescript`, `oxc`.
-Setting the `plugins` array explicitly overrides these defaults.
-
-ESLint core rules are usable in oxlint without needing to configure a plugin in the config file.
-
-### Rule Categories
-
-Oxlint groups rules into categories for bulk configuration, though only `correctness` is enabled by default:
-
-```json
-{
-  "categories": {
-    "correctness": "error",
-    "suspicious": "warn"
-  }
-}
-```
-
-Available categories: `correctness` (default: enabled), `suspicious`, `pedantic`, `perf`, `style`, `restriction`, `nursery`.
-
-Individual rule settings in `rules` override category settings.
-
-`@oxlint/migrate` will turn `correctness` off to avoid enabling additional rules that weren't enabled by your ESLint config. You can choose to enable additional categories after migration if desired.
-
-### Check Unmigrated Rules
-
-Run with `--details` to see which ESLint rules could not be migrated:
-
-```bash
-npx @oxlint/migrate --details
-```
-
-Review the output and decide whether to keep ESLint for those rules or not. Some rules may be mentioned in the output from `--details` as having equivalents in oxlint that were not automatically mapped by the migration tool. In those cases, consider enabling the equivalent oxlint rule manually after migration.
-
-## Step 3: Install Oxlint
-
-Install the core oxlint package (use `yarn install`, `pnpm install`, `vp install`, `bun install`, etc. depending on your package manager):
-
-```bash
-npm install -D oxlint
-```
-
-If you want to add the `oxlint-tsgolint` package, if you intend to use type-aware rules that require TypeScript type information:
-
-```bash
-npm install -D oxlint-tsgolint
-```
-
-No other packages besides the above are needed by default, though you will need to keep/install any additional ESLint plugins that were migrated into `jsPlugins`. Do not add `@oxlint/migrate` to the package.json, it is meant for one-off usage.
-
-## Step 4: Handle Unsupported Features
-
-Some features require manual attention:
-
-- Local plugins (relative path imports): Must be migrated manually to `jsPlugins`
-- `eslint-plugin-prettier`: Supported, but very slow. It is recommended to use [oxfmt](https://oxc.rs/docs/guide/usage/formatter) instead, or switch to `prettier --check` as a separate step alongside oxlint.
-- `settings` in override configs: Oxlint does not support `settings` inside `overrides` blocks.
-- ESLint v9+ plugins: Not all work with oxlint's JS Plugins API, but the majority will.
-
-### Local Plugins
-
-If you have any custom ESLint rules in the project repo itself, you can migrate them manually after running the migration tool by adding them to the `jsPlugins` field in `.oxlintrc.json`:
-
-```json
-{
-  "jsPlugins": ["./path/to/my-plugin.js"],
-  "rules": {
-    "local-plugin/rule-name": "error"
-  }
-}
-```
-
-### External ESLint Plugins
-
-For ESLint plugins without a built-in oxlint equivalent, use the `jsPlugins` field to load them:
-
-```json
-{
-  "jsPlugins": ["eslint-plugin-custom"],
-  "rules": {
-    "custom/my-rule": "warn"
-  }
-}
-```
-
-## Step 5: Update CI and Scripts
-
-Replace ESLint commands with oxlint. Path arguments are optional; oxlint defaults to the current working directory.
-
-```bash
-# Before
-npx eslint src/
-npx eslint --fix src/
-
-# After
-npx oxlint src/
-npx oxlint --fix src/
-```
-
-### Common CLI Options
-
-| ESLint                    | oxlint equivalent                              |
-| ------------------------- | ---------------------------------------------- |
-| `eslint .`                | `oxlint` (default: lints the cwd)              |
-| `eslint src/`             | `oxlint src/`                                  |
-| `eslint --fix`            | `oxlint --fix`                                 |
-| `eslint --max-warnings 0` | `oxlint --deny-warnings` or `--max-warnings 0` |
-| `eslint --format json`    | `oxlint --format json`                         |
-
-Additional oxlint options:
-
-- `--tsconfig <path>`: Specify tsconfig.json path, likely unnecessary unless you have a non-standard name for `tsconfig.json`.
-
-## Tips
-
-- You can run alongside ESLint if necessary: Oxlint is designed to complement ESLint during migration, but with JS Plugins many projects can switch over fully without losing many rules.
-- Disable comments work: `// eslint-disable` and `// eslint-disable-next-line` comments are supported by oxlint. Use `--replace-eslint-comments` when running @oxlint/migrate to convert them to `// oxlint-disable` equivalents if desired.
-- List available rules: Run `npx oxlint --rules` to see all supported rules, or refer to the [rule documentation](https://oxc.rs/docs/guide/usage/linter/rules.html).
-- Schema support: Add `"$schema": "./node_modules/oxlint/configuration_schema.json"` to `.oxlintrc.json` for editor autocompletion if the migration tool didn't do it automatically.
-- Output formats: `default`, `stylish`, `json`, `github`, `gitlab`, `junit`, `checkstyle`, `unix`
-- Ignore files: `.eslintignore` is supported by oxlint if you have it, but it's recommended to move any ignore patterns into the `ignorePatterns` field in `.oxlintrc.json` for consistency and simplicity. All files and paths ignored via a `.gitignore` file will be ignored by oxlint by default as well.
-- If you ran the migration tool multiple times, remove the `.oxlintrc.json.bak` backup file created by the migration tool once you've finished migrating.
-- If you are not using any JS Plugins and have replaced your ESLint configuration, you can remove all ESLint packages from your project dependencies.
-- Ensure your editor is configured to use oxlint instead of ESLint for linting and error reporting. You may want to install the Oxc extension for your preferred editor. See https://oxc.rs/docs/guide/usage/linter/editors.html for more details.
-
-## References
-
-- [CLI Reference](https://oxc.rs/docs/guide/usage/linter/cli.html)
-- [Config File Reference](https://oxc.rs/docs/guide/usage/linter/config-file-reference.html)
-- [Complete Oxlint rule list and docs](https://oxc.rs/docs/guide/usage/linter/rules.html)

.claude-plugin/marketplace.json

@@ -1,14 +0,0 @@
-{
-  "name": "remanso-local",
-  "description": "Local plugins for the Remanso project",
-  "owner": {
-    "name": "julien"
-  },
-  "plugins": [
-    {
-      "name": "remanso-skills",
-      "description": "Local skills for the Remanso project (migrate-oxlint, etc.)",
-      "source": "./.agents"
-    }
-  ]
-}

.doc-jitrc.json

@@ -5,10 +5,6 @@
         "label": "Vue i18n",
         "uri": "https://vue-i18n.intlify.dev/guide/introduction.html"
       }
-    ],
+    ]
-    "vite.config.ts": {
-      "label": "Remanso GitHub app",
-      "uri": "https://github.com/organizations/remanso-spance/settings/apps/lite-note"
-    }
   }
 }

.gitea/workflows/ci.yml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: ci-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 11.0.9
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Type-check
+        run: pnpm types
+
+      - name: Lint
+        run: pnpm lint
+
+      - name: Test
+        run: pnpm test --run

.gitignore

@@ -2,7 +2,6 @@
 node_modules
 /dist
 
-
 # local env files
 .env.local
 .env.*.local

.husky/_pre-push

@@ -1,37 +0,0 @@
-# Define the checksum file
-CHECKSUM_FILE=".env.checksum"
-
-# Calculate the current checksum of the .env file
-CURRENT_CHECKSUM=$(shasum -a 256 .env | awk '{ print $1 }')
-
-# Check if checksum file exists
-if [ -f "$CHECKSUM_FILE" ]; then
-  # Read the previous checksum
-  PREVIOUS_CHECKSUM=$(cat "$CHECKSUM_FILE")
-
-  # Compare the current checksum with the previous checksum
-  if [ "$CURRENT_CHECKSUM" = "$PREVIOUS_CHECKSUM" ]; then
-    echo ".env file has not changed. Skipping Netlify environment import."
-    exit 0
-  fi
-fi
-
-# If the checksum is different or the file doesn't exist, import the variables
-echo "Importing environment variables to Netlify..."
-netlify env:import .env
-
-if [ $? -ne 0 ]; then
-  echo "Failed to import environment variables to Netlify. Aborting push."
-  exit 1
-fi
-
-# Save the new checksum
-echo "$CURRENT_CHECKSUM" > "$CHECKSUM_FILE"
-
-# Stage the checksum file
-git add "$CHECKSUM_FILE"
-
-# Amend the last commit with the updated checksum
-git commit -m "Update .env checksum"
-
-echo "Environment variables imported successfully."

.zed/settings.json

@@ -0,0 +1,23 @@
+{
+  "format_on_save": "on",
+  "formatter": {
+    "external": {
+      "command": "node_modules/.bin/oxfmt",
+      "arguments": ["--stdin-filepath", "{buffer_path}"]
+    }
+  },
+  "languages": {
+    "TypeScript": {
+      "language_servers": ["!deno", "..."]
+    },
+    "TSX": {
+      "language_servers": ["!deno", "..."]
+    },
+    "JavaScript": {
+      "language_servers": ["!deno", "..."]
+    },
+    "JSX": {
+      "language_servers": ["!deno", "..."]
+    }
+  }
+}

Dockerfile

@@ -1,11 +1,11 @@
 # ---- Stage 1: deps (only invalidated when lockfile changes) ----
 FROM node:22-alpine AS deps
 
-RUN corepack enable && corepack prepare pnpm@latest --activate
+RUN corepack enable
 
 WORKDIR /app
 
-COPY package.json pnpm-lock.yaml ./
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 
 RUN pnpm install --frozen-lockfile
 
@@ -13,7 +13,7 @@ RUN pnpm install --frozen-lockfile
 # ---- Stage 2: build (invalidated on any source change) ----
 FROM node:22-alpine AS builder
 
-RUN corepack enable && corepack prepare pnpm@latest --activate
+RUN corepack enable
 
 WORKDIR /app
 
@@ -28,8 +28,6 @@ RUN pnpm run build
 FROM nginx:alpine AS runner
 
 COPY --from=builder /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
 
 EXPOSE 80
-
-HEALTHCHECK --interval=30s --timeout=3s \
-  CMD wget -qO- http://localhost:80/ || exit 1

_scripts/build-monochrome-icon.ts

@@ -0,0 +1,40 @@
+import path from "path"
+import sharp from "sharp"
+
+// PWA spec: `purpose: "monochrome"` icons are *masks*. The user agent ignores
+// RGB and uses only the alpha channel as the silhouette, then paints it with
+// the platform theme color. So the source PNG must be RGBA with the silhouette
+// in alpha, NOT a black-on-white RGB image.
+
+const SRC = path.resolve(__dirname, "../public/favicon.png")
+const OUT = path.resolve(__dirname, "../public/monochromeicon.png")
+const SIZE = 1024
+
+async function main() {
+  const { data, info } = await sharp(SRC)
+    .resize(SIZE, SIZE, { fit: "contain", background: { r: 0, g: 0, b: 0, alpha: 0 } })
+    .ensureAlpha()
+    .raw()
+    .toBuffer({ resolveWithObject: true })
+
+  if (info.channels !== 4) throw new Error(`expected RGBA, got ${info.channels} channels`)
+
+  const out = Buffer.alloc(data.length)
+  for (let i = 0; i < data.length; i += 4) {
+    out[i] = 0
+    out[i + 1] = 0
+    out[i + 2] = 0
+    out[i + 3] = data[i + 3]
+  }
+
+  await sharp(out, { raw: { width: SIZE, height: SIZE, channels: 4 } })
+    .png({ compressionLevel: 9 })
+    .toFile(OUT)
+
+  console.log(`Wrote ${OUT} (${SIZE}x${SIZE} RGBA)`)
+}
+
+main().catch((e) => {
+  console.error(e)
+  process.exit(1)
+})

_scripts/change-theme-dark.ts

@@ -28,8 +28,8 @@ let themeConfigContent = readFileSync(themeConfigPath, "utf8")
 
 // Remplacer la valeur du thème sombre
 themeConfigContent = themeConfigContent.replace(
-  /dark:\s*['"][^'"]*['"],/,
+  /dark:\s*['"][^'"]*['"](,?)/,
-  `dark: '${newTheme}',`
+  `dark: '${newTheme}'$1`
 )
 
 // Écrire le contenu mis à jour dans le fichier

docs/superpowers/specs/2026-04-20-react-native-migration-design.md

@@ -0,0 +1,236 @@
+# Remanso React Native Migration — Design Spec
+
+**Date:** 2026-04-20
+**Status:** Approved
+
+## Overview
+
+Migrate Remanso from a Vue 3 web app to a fully native iOS + Android app built with Expo (React Native). The primary motivation is native feel: fluid stack animations, swipe-back gestures, and native navigation chrome. The scope is a full replacement of the web app.
+
+## Tech Stack
+
+| Concern          | Current (Vue)          | React Native                                               |
+| ---------------- | ---------------------- | ---------------------------------------------------------- |
+| Framework        | Vue 3 + Vite           | Expo SDK (managed workflow)                                |
+| Routing          | Vue Router             | Expo Router (file-system routing over React Navigation v7) |
+| State            | Pinia                  | Zustand                                                    |
+| Server state     | TanStack Vue Query     | TanStack Query (same library)                              |
+| Styling          | DaisyUI + Tailwind CSS | NativeWind v4                                              |
+| Local DB         | PouchDB (IndexedDB)    | Expo SQLite                                                |
+| Simple KV store  | localStorage           | MMKV                                                       |
+| Auth             | OAuth redirects        | expo-auth-session                                          |
+| GitHub API       | @octokit/rest          | @octokit/rest (unchanged)                                  |
+| i18n             | vue-i18n               | react-i18next                                              |
+| Date utils       | date-fns               | date-fns (unchanged)                                       |
+| Markdown content | markdown-it (DOM)      | react-native-webview                                       |
+| Fonts            | CSS custom properties  | expo-font                                                  |
+
+## Navigation Structure
+
+Expo Router generates a React Navigation v7 tree from the file system. The stacked note pattern — the core native feel win — maps to a nested Stack navigator where each backlink push adds a note with a native slide animation and swipe-left pops it.
+
+```
+Root Stack
+├── Auth screens (unauthenticated, no tab bar)
+│   ├── Home / Welcome
+│   ├── GitHub OAuth callback
+│   └── ATProto OAuth callback
+│
+└── Authenticated App — Bottom Tabs
+    ├── Tab: Feed (Stack)
+    │   ├── Repo picker
+    │   └── Note Stack (nested Stack)
+    │       ├── Note (root)
+    │       ├── Note (pushed via backlink)  ← swipe-back to pop
+    │       └── Note (pushed via backlink)  ← swipe-back to pop
+    │
+    ├── Tab: Inbox / Drafts / Todos (Stack)
+    │   └── Note list → Note detail
+    │
+    ├── Tab: Public Notes (Stack)
+    │   ├── Public note list
+    │   └── Public note detail
+    │
+    └── Tab: Settings (Stack)
+        ├── Settings root
+        └── Font picker (presented as modal)
+```
+
+History and Spaced Repetition are accessible as sections within the Feed tab or as additional tabs — to be decided during implementation.
+
+## Data Layer
+
+PouchDB is replaced by **Expo SQLite** for structured data and **MMKV** for simple key-value preferences.
+
+### Expo SQLite schema
+
+```sql
+CREATE TABLE IF NOT EXISTS github_tokens (
+  id TEXT PRIMARY KEY,
+  access_token TEXT NOT NULL,
+  refresh_token TEXT,
+  expires_at INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS atproto_sessions (
+  id TEXT PRIMARY KEY,
+  did TEXT NOT NULL
+  -- full session_json stored in Expo SecureStore keyed by id
+);
+
+CREATE TABLE IF NOT EXISTS saved_repos (
+  id TEXT PRIMARY KEY,
+  user TEXT NOT NULL,
+  repo TEXT NOT NULL,
+  files_json TEXT NOT NULL,
+  cached_at INTEGER NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS history (
+  id TEXT PRIMARY KEY,
+  user TEXT NOT NULL,
+  repo TEXT NOT NULL,
+  note_path TEXT NOT NULL,
+  content TEXT NOT NULL,
+  created_at INTEGER NOT NULL
+);
+```
+
+The existing `DataApi` interface (`add`, `update`, `remove`, `get`, `getAll`) is re-implemented as a thin wrapper over Expo SQLite. No ORM — plain async SQL with `CREATE TABLE IF NOT EXISTS` on first open handles schema initialization at this scale.
+
+Sensitive data (access tokens, refresh tokens, ATProto sessions) is stored in **Expo SecureStore** rather than plain SQLite. SQLite holds only metadata and content cache.
+
+### MMKV
+
+Replaces localStorage for user settings: font family, font size, theme preference. Synchronous reads, no async overhead.
+
+### No Web Worker
+
+Database calls move to the main thread via Expo SQLite's async API. The performance concern that justified the Web Worker on web does not apply on mobile.
+
+## Auth Flows
+
+### GitHub OAuth
+
+The existing auth server (`api.remanso.space/auth/github`) handles code exchange — the client flow is unchanged:
+
+1. `expo-auth-session` opens an in-app browser tab with the GitHub authorize URL
+2. OAuth redirect captured by Expo's deep link handler
+3. Code sent to `api.remanso.space/auth/github?code=...` for token exchange
+4. Access token + refresh token stored in Expo SecureStore
+5. Token refresh logic (15-minute pre-expiry check) stays the same; HTTP calls use `fetch`
+
+### ATProto / Bluesky OAuth
+
+`@atproto/oauth-client-browser` is browser-only (IndexedDB, `window.crypto`, browser redirects). There is no official React Native client. A custom client (~200–300 lines) is implemented using:
+
+- `expo-auth-session` for the OAuth redirect flow (PKCE)
+- `expo-crypto` for PKCE code verifier/challenge generation
+- Expo SecureStore for session persistence
+- The same Bluesky API endpoints as the browser client
+
+This keeps ATProto auth fully client-side, consistent with the app's current architecture.
+
+## State Management
+
+Zustand replaces Pinia. The store shape is identical to `userRepo.store.ts`:
+
+```ts
+const useRepoStore = create<RepoState>((set, get) => ({
+  user: "",
+  repo: "",
+  files: [],
+  userSettings: null,
+  needToLogin: false,
+  setRepo: (user, repo) => set({ user, repo }),
+  loadFiles: async () => {
+    /* Octokit call */
+  },
+  loadSettings: async () => {
+    /* MMKV read */
+  }
+}))
+```
+
+TanStack Query handles all GitHub API server state (file fetching, README, repo listing) — same library, same patterns as today.
+
+## Styling
+
+NativeWind v4 provides Tailwind utility classes in React Native. DaisyUI is web-only and has no React Native equivalent — all component styling (buttons, cards, modals) is hand-written using NativeWind utilities.
+
+The two DaisyUI themes (`retro` light, `coffee` dark) are translated into a custom NativeWind theme in `tailwind.config.ts` with the same color tokens. System appearance (`useColorScheme`) drives theme selection.
+
+Font customization uses `expo-font` for loading custom fonts and React Native's `fontFamily` style prop, replacing the CSS custom property approach.
+
+## Markdown Rendering
+
+The markdown-it pipeline (KaTeX, Mermaid, shiki, tabler icons, html5-media, GitHub alerts, checkboxes) runs in the React Native JS context unchanged — same code, same output. The resulting HTML string is passed to a `NoteWebView` component built on `react-native-webview`.
+
+`NoteWebView` is a native UIView/View wrapper around a WebView engine. It is a React Native component — not a web app. The surrounding app (navigation chrome, tab bar, headers, settings, auth screens) is 100% native. Only the note content pane renders HTML. This is the standard pattern for rich content in React Native (used by GitHub Mobile, Linear, and others).
+
+The WebView communicates back to the native layer via `postMessage` for:
+
+- Internal note link taps (trigger React Navigation push)
+- External URL taps (open in system browser)
+- Backlink detection events
+
+## Project Structure
+
+```
+src/
+├── app/                        # Expo Router — file-system screens
+│   ├── _layout.tsx             # Root Stack navigator
+│   ├── index.tsx               # Home / Welcome
+│   └── (tabs)/                 # Authenticated tab navigator
+│       ├── _layout.tsx
+│       ├── feed/               # Feed + Note Stack screens
+│       ├── inbox/
+│       ├── public/
+│       └── settings/
+│
+├── modules/                    # Feature domains (mirrors current structure)
+│   ├── note/                   # Note models, hooks, caching
+│   ├── repo/                   # Zustand store, Octokit service
+│   ├── user/
+│   │   ├── auth/               # GitHub + ATProto OAuth hooks
+│   │   └── fonts.ts            # Font downloading (was utils/downloadFont.ts)
+│   ├── card/                   # Spaced repetition
+│   ├── history/                # Edit history
+│   ├── atproto/                # Custom ATProto OAuth client, DID resolution
+│   └── post/                   # ts-rest API client (unchanged)
+│
+├── components/                 # Shared UI components
+│
+├── rendering/                  # Markdown pipeline — first-class module
+│   ├── pipeline.ts             # markdown-it setup + plugin registration
+│   ├── plugins/                # Custom plugins
+│   │   ├── html5-media.ts
+│   │   ├── regexp.ts
+│   │   └── tabler-icons.ts
+│   └── NoteWebView.tsx         # react-native-webview wrapper
+│
+├── lib/                        # Shared low-level, stateless helpers
+│   ├── text.ts                 # slugify, noteTitle, displayLanguage
+│   ├── links.ts                # link.ts + youtube.ts
+│   ├── encoding.ts             # decodeBase64ToUTF8
+│   └── notifications.ts        # notif.ts
+│
+├── hooks/                      # React hooks
+├── data/                       # Expo SQLite wrapper (same DataApi interface)
+├── locales/                    # i18n strings (unchanged)
+└── constants/                  # Theme tokens, note width constants
+```
+
+## Key Risks
+
+1. **ATProto custom OAuth client** — no official SDK; requires careful PKCE implementation and session lifecycle management.
+2. **DaisyUI → NativeWind component styling** — no 1:1 mapping; all themed components need to be rebuilt. Most labor-intensive non-feature work.
+3. **NoteWebView ↔ native bridge** — link tap handling and scroll coordination between the WebView and the native Stack navigator require careful implementation to feel seamless.
+4. **Mermaid in WebView** — Mermaid is JS-heavy; initial render may be slow on lower-end Android. May need lazy rendering or a timeout fallback.
+
+## Out of Scope
+
+- PWA / service worker (not applicable to native)
+- Web Worker (replaced by async SQLite)
+- Comlink (not applicable)
+- Server-side rendering

index.html

@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="en" data-theme="garden">
+<html lang="en" data-theme="light">
   <head>
     <meta charset="utf-8" />
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />

nginx.conf

@@ -0,0 +1,9 @@
+server {
+    listen 80;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}

package.json

@@ -2,6 +2,7 @@
   "name": "remanso",
   "version": "1.0.0",
   "private": true,
+  "packageManager": "pnpm@11.0.9",
   "scripts": {
     "dev": "vite",
     "build": "vite build",
@@ -12,33 +13,38 @@
     "lint:fix": "oxlint --fix",
     "fmt": "oxfmt",
     "fmt:check": "oxfmt --check",
-    "prepare": "husky",
     "theme:light": "esno _scripts/change-theme-light.ts",
-    "theme:dark": "esno _scripts/change-theme-dark.ts",
+    "theme:dark": "esno _scripts/change-theme-dark.ts"
-    "generate-pwa-assets": "pwa-assets-generator"
   },
   "dependencies": {
     "@atproto/oauth-client-browser": "^0.3.41",
     "@better-fetch/fetch": "^1.1.21",
     "@better-fetch/logger": "^1.1.21",
     "@intlify/unplugin-vue-i18n": "^6.0.8",
+    "@mdit/plugin-tab": "^0.24.2",
     "@octokit/core": "^7.0.6",
     "@octokit/rest": "^22.0.1",
     "@openpanel/web": "^1.3.0",
     "@tailwindcss/postcss": "^4.1.16",
     "@tanstack/vue-query": "^5.92.9",
     "@toycode/markdown-it-class": "^1.2.4",
+    "@ts-rest/core": "^3.52.1",
+    "@ts-rest/vue-query": "^3.52.1",
     "@vscode/markdown-it-katex": "^1.1.2",
     "@vueuse/components": "^14.2.1",
     "@vueuse/core": "^13.6.0",
     "@vueuse/router": "^13.6.0",
     "arktype": "^2.1.29",
+    "comlink": "^4.4.2",
     "date-fns": "^4.1.0",
+    "dompurify": "^3.4.3",
     "events": "^3.3.0",
     "font-color-contrast": "^11.1.0",
     "fontfaceobserver": "^2.3.0",
+    "github-slugger": "^2.0.0",
     "isomorphic-fetch": "^3.0.0",
     "markdown-it": "^14.1.0",
+    "markdown-it-anchor": "^9.2.0",
     "markdown-it-block-embed": "^0.0.3",
     "markdown-it-checkbox": "^1.1.0",
     "markdown-it-github-alerts": "^1.0.0",
@@ -55,6 +61,7 @@
     "register-service-worker": "^1.7.2",
     "retrobus": "^1.9.4",
     "sanitize-html": "^2.17.0",
+    "shikiji-core": "0.10.2",
     "vue": "^3.5.18",
     "vue-i18n": "^11.1.11",
     "vue-router": "^4.5.1",
@@ -63,6 +70,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.28.5",
+    "@pinia/testing": "^1.0.3",
     "@tailwindcss/typography": "^0.5.19",
     "@types/fontfaceobserver": "^2.1.3",
     "@types/markdown-it": "^14.1.2",
@@ -72,6 +80,7 @@
     "@vite-pwa/assets-generator": "^1.0.2",
     "@vitejs/plugin-vue": "^5.2.4",
     "@vue/compiler-sfc": "^3.5.28",
+    "@vue/test-utils": "^2.4.11",
     "autoprefixer": "^10.4.24",
     "daisyui": "^5.5.18",
     "dotenv": "^17.2.3",
@@ -79,7 +88,7 @@
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "eslint-plugin-unused-imports": "^4.4.1",
     "esno": "^4.8.0",
-    "husky": "^9.1.7",
+    "jsdom": "^29.1.1",
     "oxfmt": "^0.42.0",
     "oxlint": "^1.57.0",
     "prettier": "^3.8.1",

pnpm-workspace.yaml

@@ -1,2 +1,7 @@
 allowBuilds:
+  '@parcel/watcher': true
   core-js: true
+  esbuild: true
+  fsevents: true
+  sharp: true
+  vue-demi: true

skills-lock.json

@@ -1,10 +0,0 @@
-{
-  "version": 1,
-  "skills": {
-    "migrate-oxlint": {
-      "source": "oxc-project/oxc",
-      "sourceType": "github",
-      "computedHash": "80ce5201b1ef52d6cabe553a4cacfd6e1db97bad99618216b9cf9318d11d7e64"
-    }
-  }
-}

src/App.vue

@@ -17,10 +17,18 @@ const { isATProtoReady } = useATProtoLogin()
 
 <style lang="scss">
 #main-app {
-  height: 100vh;
+  height: 100dvh;
   width: 100%;
+  max-width: none;
   display: flex;
   flex: 1;
+  overflow-x: auto;
+}
+
+@media screen and (max-width: 768px) {
+  #main-app {
+    overflow-y: auto;
+  }
 }
 
 ::view-transition-old(root),

src/analytics/openpanel.ts

@@ -1,7 +1,7 @@
 import { OpenPanel } from "@openpanel/web"
 
 export const op = new OpenPanel({
-  apiUrl: "https://api.panel.apoena.dev",
+  apiUrl: "https://api.stats.apoena.dev",
   clientId: "038a6aac-19bb-4a7f-9aae-2d0201fead5b",
   trackScreenViews: true,
   trackOutgoingLinks: true,

src/bus/noteEventBus.ts

@@ -4,6 +4,7 @@ interface EventBusParams {
   user: string
   repo: string
   path: string
+  hash?: string
   currentNoteSHA?: string
 }
 

src/components/AuthorizeUser.vue

@@ -3,6 +3,7 @@ import { onBeforeMount, ref } from "vue"
 import { useRoute, useRouter } from "vue-router"
 
 import { useGitHubLogin } from "@/hooks/useGitHubLogin.hook"
+import { consumeGithubOAuthReturnPath } from "@/modules/user/service/oauthReturnPath"
 import { signIn } from "@/modules/user/service/signIn"
 
 const route = useRoute()
@@ -19,11 +20,16 @@ onBeforeMount(async () => {
     if ("error" in token) {
       hasError.value = true
     } else {
-      token.access_token
+      await saveCredentials(token)
-      saveCredentials(token)
     }
 
-    router.replace({ name: "Home" })
+    const returnPath = consumeGithubOAuthReturnPath()
+
+    if (!hasError.value && returnPath) {
+      router.replace(returnPath)
+    } else {
+      router.replace({ name: "Home" })
+    }
   }
 })
 </script>

src/components/BackButton.vue

@@ -24,7 +24,7 @@ const goBack = () => {
 </script>
 
 <template>
-  <a class="btn btn-sm back-button" @click="goBack">
+  <button class="btn btn-sm back-button text-base-content" @click="goBack">
     <svg
       xmlns="http://www.w3.org/2000/svg"
       class="icon icon-tabler icon-tabler-arrow-narrow-left"
@@ -41,5 +41,5 @@ const goBack = () => {
       <line x1="5" y1="12" x2="9" y2="16" />
       <line x1="5" y1="12" x2="9" y2="8" />
     </svg>
-  </a>
+  </button>
 </template>

src/components/FluxNote.vue

@@ -1,18 +1,14 @@
 <script lang="ts" setup>
-import {
+import { computed, onMounted, onUnmounted, toRefs, watch } from "vue"
-  computed,
-  defineAsyncComponent,
-  nextTick,
-  onMounted,
-  onUnmounted,
-  toRefs,
-  watch
-} from "vue"
 
+import HeaderNote from "@/components/HeaderNote.vue"
+import SignInGithub from "@/components/SignInGithub.vue"
 import SkeletonLoader from "@/components/SkeletonLoader.vue"
 import StackedNote from "@/components/StackedNote.vue"
+import { useGitHubLogin } from "@/hooks/useGitHubLogin.hook"
 import { useLinks } from "@/hooks/useLinks.hook"
 import { markdownBuilder } from "@/hooks/useMarkdown.hook"
+import { useMarkdownPostRender } from "@/hooks/useMarkdownPostRender.hook"
 import { useNoteView } from "@/hooks/useNoteView.hook"
 import { useResizeContainer } from "@/hooks/useResizeContainer.hook"
 import { useRouteQueryStackedNotes } from "@/hooks/useRouteQueryStackedNotes.hook"
@@ -21,10 +17,6 @@ import CacheAllNotes from "@/modules/note/components/CacheAllNote.vue"
 import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
 import { useUserSettings } from "@/modules/user/hooks/useUserSettings.hook"
 
-const HeaderNote = defineAsyncComponent(
-  () => import("@/components/HeaderNote.vue")
-)
-
 const props = withDefaults(
   defineProps<{
     user: string
@@ -54,6 +46,7 @@ const { listenToClick } = useLinks("note-display")
 const { stackedNotes, scrollToFocusedNote } = useRouteQueryStackedNotes()
 
 const { titles } = useNoteView()
+const { isLogged } = useGitHubLogin()
 useResizeContainer("note-container", stackedNotes)
 
 const renderedContent = computed(() =>
@@ -67,14 +60,10 @@ const renderedContent = computed(() =>
 const isLoading = computed(() => renderedContent.value === undefined)
 const hasContent = computed(() => !!renderedContent.value)
 
-watch(
+useMarkdownPostRender(renderedContent, () => ".note-display", {
-  renderedContent,
+  onReady: () => listenToClick(),
-  async () => {
+  tikz: true
-    await nextTick()
+})
-    listenToClick()
-  },
-  { immediate: true }
-)
 
 watch(
   [refProps.user, refProps.repo],
@@ -84,6 +73,10 @@ watch(
   { immediate: true }
 )
 
+const retryLoad = () => {
+  store.setUserRepo(props.user, props.repo)
+}
+
 onMounted(() => visitRepo())
 
 onUnmounted(() => {
@@ -112,9 +105,25 @@ onUnmounted(() => {
         <cache-all-notes />
       </div>
       <slot />
-      <skeleton-loader v-if="isLoading || !hasContent" />
+      <skeleton-loader v-if="isLoading" />
+      <div
+        v-else-if="withContent && !hasContent && store.loadError === 'network'"
+        class="repo-network-error"
+      >
+        <p>Couldn't reach GitHub. Check your connection.</p>
+        <button class="btn btn-primary" @click="retryLoad">Retry</button>
+      </div>
+      <div v-else-if="withContent && !hasContent" class="repo-not-found">
+        <template v-if="isLogged">
+          <p>This repository is not accessible.</p>
+        </template>
+        <template v-else>
+          <p>This repository is private. Sign in to view it.</p>
+          <sign-in-github />
+        </template>
+      </div>
       <p
-        v-else-if="withContent"
+        v-else-if="withContent && hasContent"
         class="note-display"
         v-html="renderedContent"
       />
@@ -200,6 +209,16 @@ $header-height: 40px;
     }
   }
 
+  .repo-not-found,
+  .repo-network-error {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 1rem;
+    padding: 2rem 0;
+    color: var(--color-base-content);
+  }
+
   .note-display {
     padding-bottom: 2rem;
   }
@@ -208,12 +227,6 @@ $header-height: 40px;
     display: flex;
     flex-direction: column;
     overflow-y: auto;
-    height: 100vh;
-    position: sticky;
-
-    &:not(:first-child) {
-      border-top: 1px solid rgba(18, 19, 58, 0.2);
-    }
 
     .title {
       text-align: left;
@@ -221,6 +234,8 @@ $header-height: 40px;
   }
 
   @media screen and (min-width: 769px) {
+    background-color: var(--note-canvas-bg);
+
     .repo-title-breadcrumb {
       padding: 0.5rem 1rem 0;
       transform-origin: 0 0;
@@ -237,6 +252,11 @@ $header-height: 40px;
     .note {
       min-width: var(--note-width);
       max-width: var(--note-width);
+      background-color: var(--color-base-100);
+    }
+
+    .readme {
+      box-shadow: var(--note-sheet-shadow);
     }
   }
 }
@@ -245,6 +265,7 @@ $header-height: 40px;
   .flux-note {
     .readme {
       padding: 0 0.75rem;
+      position: relative;
     }
   }
 
@@ -254,6 +275,7 @@ $header-height: 40px;
 
   .note {
     width: 100vw;
+    height: 100svh;
     overflow-y: visible;
   }
 

src/components/FontChange.vue

@@ -7,50 +7,94 @@ import { useUserRepoStore } from "../modules/repo/store/userRepo.store"
 
 const store = useUserRepoStore()
 
-const fontFamilies = computed(() => store.userSettings?.fontFamilies ?? [])
+const DEFAULT_FONT_FAMILIES = [
-const sortedFontFamilies = computed(() =>
+  "EB Garamond",
-  [...fontFamilies.value].sort((a, b) => a.localeCompare(b))
+  "Inter",
+  "Lato",
+  "Libertinus Serif",
+  "Lora",
+  "Merriweather",
+  "Playfair Display",
+  "Roboto",
+  "Source Serif 4"
+]
+
+const fontFamilies = computed(
+  () => store.userSettings?.fontFamilies ?? DEFAULT_FONT_FAMILIES
 )
+const sortedFontFamilies = computed(() => {
+  const base = fontFamilies.value
+  const extras = [
+    store.userSettings?.chosenTitleFont,
+    store.userSettings?.chosenBodyFont
+  ].filter((f): f is string => !!f && !base.includes(f))
+  return [...base, ...extras].sort((a, b) => a.localeCompare(b))
+})
 const fontSizes = Array.from({ length: 7 }, (_, i) => `${9 + i * 2}pt`)
+
+const titleFont = computed({
+  get: () => store.userSettings?.chosenTitleFont,
+  set: (value) => store.setTitleFont(value!)
+})
+const bodyFont = computed({
+  get: () => store.userSettings?.chosenBodyFont,
+  set: (value) => store.setBodyFont(value!)
+})
+const fontSize = computed({
+  get: () => store.userSettings?.chosenFontSize,
+  set: (value) => store.setFontSize(value!)
+})
 </script>
 
 <template>
-  <div class="font-change" v-if="sortedFontFamilies.length > 0">
+  <div class="font-change">
-    <theme-swap />
+    <div>
+      <label for="title-font" class="font-label">t</label>
+      <select id="title-font" class="select" v-model="titleFont">
+        <option v-for="font in sortedFontFamilies" :key="font" :value="font">
+          {{ font }}
+        </option>
+      </select>
 
-    <select
+      <label for="body-font" class="font-label">p</label>
-      class="select"
+      <select id="body-font" class="select" v-model="bodyFont">
-      :value="store.userSettings?.chosenFontFamily"
+        <option v-for="font in sortedFontFamilies" :key="font" :value="font">
-      @change="store.setFontFamily(($event.target as HTMLSelectElement).value)"
+          {{ font }}
-    >
+        </option>
-      <option v-for="font in sortedFontFamilies" :key="font" :value="font">
+      </select>
-        {{ font }}
+    </div>
-      </option>
+    <div>
-    </select>
+      <theme-swap />
 
-    <select
+      <label for="font-size" class="font-label">s</label>
-      class="select"
+      <select id="font-size" class="select" v-model="fontSize">
-      :value="store.userSettings?.chosenFontSize"
+        <option v-for="size in fontSizes" :key="size" :value="size">
-      @change="store.setFontSize(($event.target as HTMLSelectElement).value)"
+          {{ size }}
-    >
+        </option>
-      <option v-for="size in fontSizes" :key="size" :value="size">
+      </select>
-        {{ size }}
+    </div>
-      </option>
-    </select>
   </div>
 </template>
 
 <style lang="scss" scoped>
 .font-change {
-  flex: 1;
-  display: flex;
-  flex-wrap: wrap;
-  align-items: center;
-  gap: 1rem;
-
   select {
     flex: 1;
     display: flex;
   }
+
+  div {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 1rem;
+    margin: 1rem;
+  }
+}
+
+.font-label {
+  font-weight: bold;
+  font-size: 0.75rem;
+  opacity: 0.6;
 }
 </style>

src/components/HeaderNote.vue

@@ -1,32 +1,13 @@
 <script lang="ts" setup>
 import FontChange from "@/components/FontChange.vue"
+import HomeButton from "@/components/HomeButton.vue"
 
 defineProps<{ user: string; repo: string }>()
 </script>
 
 <template>
   <header class="header-note">
-    <router-link
+    <home-button />
-      :to="{ name: 'Home' }"
-      class="button is-small is-white back-button"
-    >
-      <svg
-        xmlns="http://www.w3.org/2000/svg"
-        class="icon icon-tabler icon-tabler-arrow-narrow-left"
-        width="28"
-        height="28"
-        viewBox="0 0 24 24"
-        stroke-width="1.5"
-        stroke="currentColor"
-        fill="none"
-        stroke-linecap="round"
-        stroke-linejoin="round"
-      >
-        <line x1="5" y1="12" x2="19" y2="12" />
-        <line x1="5" y1="12" x2="9" y2="16" />
-        <line x1="5" y1="12" x2="9" y2="8" />
-      </svg>
-    </router-link>
     <!-- <router-link
       :to="{ name: 'SpacedRepetitionCard', params: { user, repo } }"
     >
@@ -51,12 +32,15 @@ defineProps<{ user: string; repo: string }>()
       </svg>
     </router-link> -->
 
-    <button onclick="font_modal.showModal()">
+    <button
+      class="btn btn-ghost btn-circle text-base-content"
+      onclick="font_modal.showModal()"
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
         class="icon icon-tabler icons-tabler-outline icon-tabler-typography"
-        width="36"
+        width="30"
-        height="36"
+        height="30"
         viewBox="0 0 24 24"
         stroke-width="1.5"
         stroke="currentColor"
@@ -71,11 +55,14 @@ defineProps<{ user: string; repo: string }>()
         <path d="M5 20l6 -16l2 0l7 16" />
       </svg>
     </button>
-    <router-link :to="{ name: 'FluxNoteView', params: { user, repo } }">
+    <router-link
+      class="btn btn-ghost btn-circle"
+      :to="{ name: 'FluxNoteView', params: { user, repo } }"
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
-        width="36"
+        width="30"
-        height="36"
+        height="30"
         viewBox="0 0 24 24"
         stroke="currentColor"
         fill="none"
@@ -88,12 +75,15 @@ defineProps<{ user: string; repo: string }>()
         <path d="M9 21v-6a2 2 0 0 1 2 -2h2a2 2 0 0 1 2 2v6" />
       </svg>
     </router-link>
-    <router-link :to="{ name: 'DraftNotes', params: { user, repo } }">
+    <router-link
+      class="btn btn-ghost btn-circle"
+      :to="{ name: 'DraftNotes', params: { user, repo } }"
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
         class="icon icon-tabler icon-tabler-notes"
-        width="36"
+        width="30"
-        height="36"
+        height="30"
         viewBox="0 0 24 24"
         stroke-width="1.5"
         stroke="currentColor"
@@ -107,11 +97,14 @@ defineProps<{ user: string; repo: string }>()
         <line x1="9" y1="15" x2="13" y2="15" />
       </svg>
     </router-link>
-    <router-link :to="{ name: 'TodoNotes', params: { user, repo } }">
+    <router-link
+      class="btn btn-ghost btn-circle"
+      :to="{ name: 'TodoNotes', params: { user, repo } }"
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
-        width="36"
+        width="30"
-        height="36"
+        height="30"
         viewBox="0 0 24 24"
         fill="none"
         stroke="currentColor"
@@ -129,12 +122,15 @@ defineProps<{ user: string; repo: string }>()
         <path d="M11 18l9 0" />
       </svg>
     </router-link>
-    <router-link :to="{ name: 'FleetingNotes', params: { user, repo } }">
+    <router-link
+      class="btn btn-ghost btn-circle"
+      :to="{ name: 'FleetingNotes', params: { user, repo } }"
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
         class="icon icon-tabler icon-tabler-mailbox"
-        width="36"
+        width="30"
-        height="36"
+        height="30"
         viewBox="0 0 24 24"
         stroke-width="1.5"
         stroke="currentColor"
@@ -150,7 +146,7 @@ defineProps<{ user: string; repo: string }>()
       </svg>
     </router-link>
     <dialog id="font_modal" class="modal">
-      <div class="modal-box">
+      <div class="modal-box w-10/12 max-w-2xl">
         <h3 class="text-lg font-bold">Style settings</h3>
         <font-change />
       </div>
@@ -168,12 +164,6 @@ defineProps<{ user: string; repo: string }>()
   justify-content: space-between;
   margin-top: 10px;
 
-  img {
-    &:hover {
-      cursor: pointer;
-    }
-  }
-
   button {
     color: var(--color-accent);
   }

src/components/HomeButton.vue

@@ -6,9 +6,12 @@ const goHome = () => router.push({ name: "Home" })
 </script>
 
 <template>
-  <a class="btn btn-ghost btn-circle btn-lg" @click="goHome">
+  <button
+    class="btn btn-ghost btn-circle btn-lg text-base-content"
+    @click="goHome"
+  >
     <img src="/favicon.png" alt="Remanso icon" class="remanso-logo" />
-  </a>
+  </button>
 </template>
 
 <style>

src/components/LinkedNotes.vue

@@ -24,9 +24,9 @@ const emitNote = (sha: string) => {
     <h5 class="subtitle is-5">🔗</h5>
     <ul class="links">
       <li v-for="link in backlink?.links" :key="link.sha">
-        <a @click.prevent="emitNote(link.sha)">
+        <button class="link" @click="emitNote(link.sha)">
           {{ link.title }}
-        </a>
+        </button>
       </li>
     </ul>
   </div>

src/components/NoteConflictModal.vue

@@ -0,0 +1,90 @@
+<script lang="ts" setup>
+import { onMounted, ref, watch } from "vue"
+
+const props = defineProps<{ open: boolean }>()
+
+const emit = defineEmits<{
+  discard: []
+  overwrite: []
+  cancel: []
+  "update:open": [value: boolean]
+}>()
+
+const dialogRef = ref<HTMLDialogElement | null>(null)
+
+const close = () => {
+  if (dialogRef.value?.open) dialogRef.value.close()
+  emit("update:open", false)
+}
+
+const onDiscard = () => {
+  emit("discard")
+  close()
+}
+const onOverwrite = () => {
+  emit("overwrite")
+  close()
+}
+const onCancel = () => {
+  emit("cancel")
+  close()
+}
+
+watch(
+  () => props.open,
+  (open) => {
+    const el = dialogRef.value
+    if (!el) return
+    if (open && !el.open) el.showModal()
+    else if (!open && el.open) el.close()
+  }
+)
+
+onMounted(() => {
+  if (props.open) dialogRef.value?.showModal()
+})
+</script>
+
+<template>
+  <dialog
+    ref="dialogRef"
+    class="modal"
+    @close="emit('update:open', false)"
+    @cancel.prevent="onCancel()"
+  >
+    <div class="modal-box">
+      <h3 class="text-lg font-bold">GitHub has a newer version of this note</h3>
+      <p class="py-3 text-sm">
+        Someone (or another device) updated this note on GitHub since you
+        started editing. If you save now, their changes will be overwritten.
+      </p>
+
+      <div class="modal-action flex-col gap-2">
+        <button
+          type="button"
+          class="btn btn-ghost"
+          @click="onCancel()"
+        >
+          Cancel
+        </button>
+        <button
+          type="button"
+          class="btn btn-warning"
+          @click="onOverwrite()"
+        >
+          Save anyway (overwrite)
+        </button>
+        <button
+          type="button"
+          class="btn btn-primary"
+          @click="onDiscard()"
+        >
+          Discard my edits, pull latest
+        </button>
+      </div>
+    </div>
+    <form method="dialog" class="modal-backdrop">
+      <button type="submit" @click="onCancel()">close</button>
+    </form>
+  </dialog>
+</template>

src/components/NoteFreshnessBadge.spec.ts

@@ -0,0 +1,74 @@
+import { mount } from "@vue/test-utils"
+import { describe, expect, it } from "vitest"
+
+import NoteFreshnessBadge from "./NoteFreshnessBadge.vue"
+
+const factory = (props: { status: string; lastCheckedAt?: Date | null }) =>
+  mount(NoteFreshnessBadge, {
+    props: { lastCheckedAt: null, ...props } as never
+  })
+
+describe("NoteFreshnessBadge", () => {
+  it("renders the verified state with the cloud-check icon", () => {
+    const wrapper = factory({ status: "verified" })
+    expect(wrapper.classes()).toContain("state-verified")
+    expect(wrapper.find(".icon-tabler-cloud-check").exists()).toBe(true)
+  })
+
+  it("renders the outdated state with the download icon", () => {
+    const wrapper = factory({ status: "outdated" })
+    expect(wrapper.classes()).toContain("state-outdated")
+    expect(wrapper.find(".icon-tabler-cloud-download").exists()).toBe(true)
+  })
+
+  it("renders the offline state with the cloud-off icon", () => {
+    const wrapper = factory({ status: "offline" })
+    expect(wrapper.classes()).toContain("state-offline")
+    expect(wrapper.find(".icon-tabler-cloud-off").exists()).toBe(true)
+  })
+
+  it("renders the unauthorized state with the lock icon", () => {
+    const wrapper = factory({ status: "unauthorized" })
+    expect(wrapper.classes()).toContain("state-unauthorized")
+    expect(wrapper.find(".icon-tabler-cloud-lock").exists()).toBe(true)
+  })
+
+  it("disables the button while checking", () => {
+    const wrapper = factory({ status: "checking" })
+    expect(wrapper.attributes("disabled")).toBeDefined()
+    expect(wrapper.find(".icon-tabler-loader-2").exists()).toBe(true)
+  })
+
+  it("emits click when not busy", async () => {
+    const wrapper = factory({ status: "verified" })
+
+    await wrapper.trigger("click")
+
+    expect(wrapper.emitted("click")).toHaveLength(1)
+  })
+
+  it("includes the last-checked time in the verified tooltip", () => {
+    const wrapper = factory({
+      status: "verified",
+      lastCheckedAt: new Date("2026-01-01T10:30:00")
+    })
+    const tooltip = wrapper.attributes("title") as string
+    expect(tooltip).toMatch(/Verified at/)
+  })
+
+  it("renders the unknown state as default", () => {
+    const wrapper = factory({ status: "unknown" })
+    expect(wrapper.classes()).toContain("state-unknown")
+    expect(wrapper.find(".icon-tabler-cloud-question").exists()).toBe(true)
+  })
+
+  it("offline tooltip prompts a retry", () => {
+    const wrapper = factory({ status: "offline" })
+    expect(wrapper.attributes("title")).toMatch(/retry/i)
+  })
+
+  it("unauthorized tooltip prompts a sign-in", () => {
+    const wrapper = factory({ status: "unauthorized" })
+    expect(wrapper.attributes("title")).toMatch(/[Ss]ign in/)
+  })
+})

src/components/NoteFreshnessBadge.vue

@@ -0,0 +1,242 @@
+<script lang="ts" setup>
+import { computed } from "vue"
+
+import type { FreshnessStatus } from "@/hooks/useNoteFreshness.hook"
+
+const props = defineProps<{
+  status: FreshnessStatus
+  lastCheckedAt: Date | null
+}>()
+
+defineEmits<{ (e: "click"): void }>()
+
+const formatTime = (d: Date) =>
+  d.toLocaleTimeString(undefined, { hour: "2-digit", minute: "2-digit" })
+
+const label = computed(() => {
+  switch (props.status) {
+    case "verified":
+      return "Up to date"
+    case "checking":
+      return "Checking…"
+    case "outdated":
+      return "Outdated"
+    case "offline":
+      return "Can’t reach GitHub"
+    case "unauthorized":
+      return "Sign in to GitHub"
+    case "unknown":
+    default:
+      return "Not checked"
+  }
+})
+
+const tooltip = computed(() => {
+  switch (props.status) {
+    case "verified":
+      return props.lastCheckedAt
+        ? `Verified at ${formatTime(props.lastCheckedAt)}. Click to re-check.`
+        : "Click to re-check."
+    case "outdated":
+      return "GitHub has a newer version. Click to pull latest."
+    case "offline":
+      return "Could not reach GitHub. Click to retry."
+    case "unauthorized":
+      return "GitHub auth expired. Sign in again, then click to retry."
+    case "checking":
+      return "Checking against GitHub…"
+    case "unknown":
+    default:
+      return "Click to check against GitHub."
+  }
+})
+
+const stateClass = computed(() => `state-${props.status}`)
+const isBusy = computed(() => props.status === "checking")
+</script>
+
+<template>
+  <button
+    class="freshness button is-text is-light"
+    :class="stateClass"
+    :title="tooltip"
+    :aria-label="tooltip"
+    :disabled="isBusy"
+    @click="$emit('click')"
+  >
+    <svg
+      v-if="status === 'verified'"
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-cloud-check"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path
+        d="M11 18.004h-4.343c-2.572 -.004 -4.657 -2.011 -4.657 -4.487c0 -2.475 2.085 -4.482 4.657 -4.482c.393 -1.762 1.794 -3.2 3.675 -3.773c1.88 -.572 3.956 -.193 5.444 1c1.488 1.19 2.162 3.007 1.77 4.769h.99c1.388 0 2.585 .82 3.138 2.007"
+      />
+      <path d="M15 19l2 2l4 -4" />
+    </svg>
+    <svg
+      v-else-if="status === 'unknown'"
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-cloud-question"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path
+        d="M14.5 18.004h-7.843c-2.572 -.004 -4.657 -2.011 -4.657 -4.487c0 -2.475 2.085 -4.482 4.657 -4.482c.393 -1.762 1.794 -3.2 3.675 -3.773c1.88 -.572 3.956 -.193 5.444 1c1.488 1.19 2.162 3.007 1.77 4.769h.99"
+      />
+      <path d="M19 22v.01" />
+      <path
+        d="M19 19a2.003 2.003 0 0 0 .914 -3.782a1.98 1.98 0 0 0 -2.414 .483"
+      />
+    </svg>
+    <svg
+      v-else-if="status === 'outdated'"
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-cloud-download"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path
+        d="M19 18a3.5 3.5 0 0 0 0 -7h-1a5 4.5 0 0 0 -11 -2a4.6 4.4 0 0 0 -2.1 8.4"
+      />
+      <path d="M12 13l0 9" />
+      <path d="M9 19l3 3l3 -3" />
+    </svg>
+    <svg
+      v-else-if="status === 'checking'"
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-loader-2 spin"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path d="M12 3a9 9 0 1 0 9 9" />
+    </svg>
+    <svg
+      v-else-if="status === 'unauthorized'"
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-cloud-lock"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path
+        d="M11 18.004h-4.343c-2.572 -.004 -4.657 -2.011 -4.657 -4.487c0 -2.475 2.085 -4.482 4.657 -4.482c.393 -1.762 1.794 -3.2 3.675 -3.773c1.88 -.572 3.956 -.193 5.444 1c1.488 1.19 2.162 3.007 1.77 4.769h.99c1.18 0 2.227 .593 2.85 1.5"
+      />
+      <path d="M15 16m0 1a1 1 0 0 1 1 -1h4a1 1 0 0 1 1 1v3a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1z" />
+      <path d="M18 14a2 2 0 0 1 2 2v0h-4v0a2 2 0 0 1 2 -2z" />
+    </svg>
+    <svg
+      v-else
+      xmlns="http://www.w3.org/2000/svg"
+      class="icon icon-tabler icon-tabler-cloud-off"
+      width="20"
+      height="20"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="1.75"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path
+        d="M9.58 5.548c.24 -.11 .492 -.207 .752 -.286c1.88 -.572 3.956 -.193 5.444 1c1.488 1.19 2.162 3.007 1.77 4.769h.99c1.913 0 3.464 1.56 3.464 3.486c0 .957 -.383 1.824 -1.003 2.454m-2.997 1.033h-11.343c-2.572 -.004 -4.657 -2.011 -4.657 -4.487c0 -2.475 2.085 -4.482 4.657 -4.482c.13 -.582 .37 -1.128 .7 -1.62"
+      />
+      <path d="M3 3l18 18" />
+    </svg>
+  </button>
+</template>
+
+<style lang="scss" scoped>
+.freshness {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+  font-size: 0.75rem;
+  padding: 0.15rem 0.5rem;
+  background: transparent;
+  border: 0;
+  cursor: pointer;
+  vertical-align: middle;
+
+  &[disabled] {
+    cursor: progress;
+  }
+
+  .icon {
+    flex-shrink: 0;
+  }
+
+  .freshness-label {
+    line-height: 1;
+  }
+}
+
+.state-verified {
+  color: var(--color-success, hsl(140, 60%, 35%));
+}
+
+.state-outdated {
+  color: var(--color-warning, hsl(35, 90%, 45%));
+}
+
+.state-offline {
+  color: var(--color-error, hsl(0, 70%, 45%));
+}
+
+.state-unauthorized {
+  color: var(--color-warning, hsl(35, 90%, 45%));
+}
+
+.state-unknown,
+.state-checking {
+  color: var(--color-base-content);
+  opacity: 0.6;
+}
+
+.spin {
+  animation: freshness-spin 1s linear infinite;
+}
+
+@keyframes freshness-spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media screen and (max-width: 768px) {
+  .freshness-label {
+    display: none;
+  }
+}
+</style>

src/components/ProfileModal.vue

@@ -0,0 +1,153 @@
+<script setup lang="ts">
+import { computed } from "vue"
+
+import SignInAtproto from "@/components/SignInAtproto.vue"
+import SignInGithub from "@/components/SignInGithub.vue"
+import { useGitHubLogin } from "@/hooks/useGitHubLogin.hook"
+
+const { accessToken } = useGitHubLogin()
+const isGitHubLoggedIn = computed(() => !!accessToken.value)
+</script>
+
+<template>
+  <dialog id="profile_modal" class="modal profile-modal">
+    <div class="modal-box profile-modal-box">
+      <div class="profile-modal-head">
+        <h3>Profile</h3>
+        <form method="dialog">
+          <button class="profile-modal-x" aria-label="close">×</button>
+        </form>
+      </div>
+      <div class="profile-modal-section">
+        <div class="profile-modal-label">Bluesky / ATProto</div>
+        <sign-in-atproto :with-sign-out="true" />
+      </div>
+      <hr class="profile-modal-rule" />
+      <div class="profile-modal-section">
+        <div class="profile-modal-label">GitHub</div>
+        <sign-in-github />
+        <router-link
+          v-if="isGitHubLoggedIn"
+          :to="{ name: 'RepoList' }"
+          class="profile-modal-link"
+          >Manage your repos</router-link
+        >
+      </div>
+    </div>
+    <form method="dialog" class="modal-backdrop">
+      <button></button>
+    </form>
+  </dialog>
+</template>
+
+<style scoped lang="scss">
+.profile-modal {
+  --pm-rule: color-mix(
+    in oklch,
+    var(--color-base-content) 12%,
+    var(--color-base-200)
+  );
+  --pm-ink: var(--color-base-content);
+  --pm-ink-soft: color-mix(
+    in oklch,
+    var(--color-base-content) 65%,
+    var(--color-base-200)
+  );
+  --pm-ink-faint: color-mix(
+    in oklch,
+    var(--color-base-content) 38%,
+    var(--color-base-200)
+  );
+  --pm-accent: #e36598;
+  --pm-accent-wash: color-mix(in oklch, #e36598 12%, var(--color-base-200));
+  --pm-accent-deep: color-mix(
+    in oklch,
+    #e36598 75%,
+    var(--color-base-content)
+  );
+}
+
+.profile-modal-box {
+  background: var(--color-base-200);
+  border: 1px solid var(--pm-rule);
+  border-radius: 6px;
+  padding: 1.5rem;
+  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.3);
+  color: var(--pm-ink);
+}
+
+.profile-modal-head {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+
+  h3 {
+    font-size: 1.3rem;
+    margin: 0;
+    font-weight: 600;
+  }
+}
+
+.profile-modal-x {
+  border: 0;
+  background: transparent;
+  font-size: 1.5rem;
+  cursor: pointer;
+  color: var(--pm-ink-soft);
+  line-height: 1;
+  padding: 0.25rem 0.5rem;
+
+  &:hover {
+    color: var(--pm-accent-deep);
+  }
+}
+
+.profile-modal-section {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.75rem;
+  align-items: center;
+  margin-bottom: 0.5rem;
+}
+
+.profile-modal-label {
+  display: block;
+  width: 100%;
+  font-size: 0.72rem;
+  letter-spacing: 0.14em;
+  color: var(--pm-ink-faint);
+  margin-bottom: 0.25rem;
+  text-transform: uppercase;
+}
+
+.profile-modal-rule {
+  border: 0;
+  border-top: 1px solid var(--pm-rule);
+  margin: 1.25rem 0;
+}
+
+.profile-modal-link {
+  font-size: 16px;
+  padding: 0.55rem 1rem;
+  border-radius: 2px;
+  border: 1px solid var(--pm-rule);
+  background: transparent;
+  color: var(--pm-ink-soft);
+  cursor: pointer;
+  transition:
+    background 0.15s,
+    color 0.15s,
+    border-color 0.15s;
+  text-decoration: none;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+
+  &:hover {
+    background: var(--pm-accent-wash);
+    border-color: var(--pm-accent);
+    color: var(--pm-accent-deep);
+  }
+}
+</style>

src/components/RepoList.vue

@@ -40,6 +40,7 @@ const getStyle = (seed: string) => {
 <style scoped lang="scss">
 .repo-list {
   display: flex;
+  justify-content: space-evenly;
   gap: 1rem;
   flex-wrap: wrap;
 

src/components/SignInGithub.vue

@@ -1,20 +1,34 @@
 <script lang="ts" setup>
+import { useRoute } from "vue-router"
+
+import { GITHUB_OAUTH_RETURN_PATH_KEY } from "@/modules/user/service/oauthReturnPath"
+
 const GITHUB_URL = "https://github.com/login/oauth/authorize"
 
 const CLIENT_ID = "Iv1.12dc43d013ce3623"
 const SCOPE = "repo%20workflow"
 const REDIRECT_URI = window.location.origin
 
+const route = useRoute()
+
 const url = new URL(GITHUB_URL)
 url.searchParams.set("client_id", CLIENT_ID)
 url.searchParams.set("scope", SCOPE)
 url.searchParams.set("redirect_uri", REDIRECT_URI)
 
 const href = url.toString()
+
+const saveReturnPath = () => {
+  sessionStorage.setItem(GITHUB_OAUTH_RETURN_PATH_KEY, route.fullPath)
+}
 </script>
 
 <template>
-  <a :href="href" class="sign-in-github btn btn-sm btn-primary">
+  <a
+    :href="href"
+    class="sign-in-github btn btn-sm btn-primary"
+    @click="saveReturnPath"
+  >
     Sign in with
     <svg
       xmlns="http://www.w3.org/2000/svg"

src/components/StackedNote.vue

@@ -2,7 +2,6 @@
 import {
   computed,
   defineAsyncComponent,
-  nextTick,
   onMounted,
   ref,
   watch
@@ -11,20 +10,32 @@ import {
 import { useEditionMode } from "@/hooks/useEditionMode"
 import { useFile } from "@/hooks/useFile.hook"
 import { useGitHubContent } from "@/hooks/useGitHubContent.hook"
-import { useImages } from "@/hooks/useImages.hook"
+import { useImageUpload } from "@/hooks/useImageUpload.hook"
 import { useLinks } from "@/hooks/useLinks.hook"
-import { runMermaid, useShikiji } from "@/hooks/useMarkdown.hook"
+import { renderCodeFile } from "@/hooks/useMarkdown.hook"
+import { useMarkdownPostRender } from "@/hooks/useMarkdownPostRender.hook"
+import { useNoteFreshness } from "@/hooks/useNoteFreshness.hook"
 import { useNoteOverlay } from "@/hooks/useNoteOverlay.hook"
 import { useRouteQueryStackedNotes } from "@/hooks/useRouteQueryStackedNotes.hook"
 import { useTitleNotes } from "@/hooks/useTitleNotes.hook"
 import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
 import { encodeUTF8ToBase64 } from "@/utils/decodeBase64ToUTF8"
+import { getFileLanguage, isMarkdownPath } from "@/utils/fileLanguage"
 import { filenameToNoteTitle } from "@/utils/noteTitle"
+import { errorMessage } from "@/utils/notif"
 
 const LinkedNotes = defineAsyncComponent(
   () => import("@/components/LinkedNotes.vue")
 )
 
+const NoteFreshnessBadge = defineAsyncComponent(
+  () => import("@/components/NoteFreshnessBadge.vue")
+)
+
+const NoteConflictModal = defineAsyncComponent(
+  () => import("@/components/NoteConflictModal.vue")
+)
+
 const EditNote = defineAsyncComponent(
   () => import("@/modules/note/components/EditNote.vue")
 )
@@ -53,6 +64,35 @@ const {
   getEditedSha
 } = useFile(sha)
 const initialRawContent = ref<string | null>(null)
+const isMarkdown = computed(() =>
+  path.value ? isMarkdownPath(path.value) : true
+)
+const displayedContent = ref("")
+
+watch(
+  [rawContent, isMarkdown, path],
+  async ([raw, isMd, p]) => {
+    if (!raw) {
+      displayedContent.value = ""
+      return
+    }
+    if (isMd) {
+      displayedContent.value = content.value
+      return
+    }
+    const lang = p ? getFileLanguage(p) : null
+    const filename = p?.split("/").pop()
+    const result = await renderCodeFile({ rawContent: raw, lang, filename })
+    if (rawContent.value === raw) {
+      displayedContent.value = result
+    }
+  },
+  { immediate: true }
+)
+
+watch(content, (c) => {
+  if (isMarkdown.value) displayedContent.value = c
+})
 const className = computed(() => `stacked-note-${props.index}`)
 const { listenToClick } = useLinks(className.value, sha)
 const titleClassName = computed(() => `title-${className.value}`)
@@ -60,6 +100,7 @@ useTitleNotes(repo)
 
 const store = useUserRepoStore()
 const hasBacklinks = computed(() => store.userSettings?.backlink)
+const canPush = computed(() => store.canPush)
 
 const { displayNoteOverlay } = useNoteOverlay(className.value, index)
 const displayedTitle = computed(() => filenameToNoteTitle(props.title ?? ""))
@@ -70,35 +111,111 @@ const { updateFile } = useGitHubContent({
   repo: repo.value
 })
 
+const { uploadImage } = useImageUpload({
+  user: user.value,
+  repo: repo.value,
+  notePath: path
+})
+
+const fileInput = ref<HTMLInputElement | null>(null)
+const editKey = ref(0)
+const isUploading = ref(false)
+
+const onImagePicked = async (e: Event) => {
+  const input = e.target as HTMLInputElement
+  const file = input.files?.[0]
+  input.value = ""
+  if (!file || !path.value) return
+  isUploading.value = true
+  try {
+    const result = await uploadImage(file)
+    if (!result) return
+    const trimmed = rawContent.value.replace(/\n+$/, "")
+    const prefix = trimmed ? `${trimmed}\n\n` : ""
+    rawContent.value = `${prefix}![](${result.filename})\n`
+    editKey.value++
+  } finally {
+    isUploading.value = false
+  }
+}
+
+const {
+  status: freshnessStatus,
+  lastCheckedAt,
+  latestSha,
+  check: checkFreshness,
+  pullLatest
+} = useNoteFreshness({
+  user: user.value,
+  repo: repo.value,
+  sha,
+  path,
+  getEditedSha
+})
+
+const conflictOpen = ref(false)
+
 onMounted(async () => {
   initialRawContent.value = await getRawContent()
 })
 
+watch(
+  path,
+  (p) => {
+    if (p) void checkFreshness()
+  },
+  { immediate: true }
+)
+
 const { mode, toggleMode } = useEditionMode()
 
-watch([content, mode], () => {
+useMarkdownPostRender(content, () => `.note-${sha.value}`, {
-  if (!content.value) {
+  onReady: () => listenToClick(),
+  tikz: true,
+  mermaid: () => rawContent.value.includes("```mermaid"),
+  shikiji: () => isMarkdown.value && rawContent.value.includes("```"),
+  images: () =>
+    /\!\[.*?\]\(.*?\)/.test(rawContent.value) ? props.sha : null,
+  triggers: [mode]
+})
+
+const performSave = async (overrideSha?: string) => {
+  if (!path.value) {
+    console.warn("no path found for this file")
     return
   }
 
-  nextTick(() => {
+  const editedSha = overrideSha ?? (await getEditedSha()) ?? sha.value
-    listenToClick()
+  const { sha: newSha, conflict } = await updateFile({
-
+    content: rawContent.value,
-    if (/\!\[.*?\]\(.*?\)/.test(rawContent.value)) {
+    path: path.value,
-      useImages(props.sha)
+    sha: editedSha
-    }
-
-    if (rawContent.value.includes("```mermaid")) {
-      runMermaid(`.note-${sha.value} .mermaid`)
-    }
-
-    if (rawContent.value.includes("```")) {
-      useShikiji()
-    }
   })
-})
+
+  if (conflict) {
+    await checkFreshness()
+    conflictOpen.value = true
+    if (mode.value === "read") toggleMode()
+    return
+  }
+
+  if (!newSha) {
+    console.warn("no new SHA found for this file")
+    return
+  }
+
+  await saveCacheNote(encodeUTF8ToBase64(rawContent.value), {
+    editedSha: newSha
+  })
+  initialRawContent.value = rawContent.value
+}
 
 watch(mode, async (newMode) => {
+  if (newMode === "edit") {
+    void checkFreshness()
+    return
+  }
+
   const hasUserFinishedToEdit =
     newMode === "read" && rawContent.value !== initialRawContent.value
 
@@ -107,28 +224,66 @@ watch(mode, async (newMode) => {
   }
   if (!path.value) {
     console.warn("no path found for this file")
-
     return
   }
 
-  const editedSha = (await getEditedSha()) ?? sha.value
+  await checkFreshness()
-  const newSha = await updateFile({
+  if (freshnessStatus.value === "outdated") {
-    content: rawContent.value,
+    conflictOpen.value = true
-    path: path.value,
-    sha: editedSha
-  })
-
-  if (!newSha) {
-    console.warn("no new SHA found for this file")
-
     return
   }
 
-  await saveCacheNote(encodeUTF8ToBase64(rawContent.value), {
+  await performSave()
-    editedSha: newSha
-  })
-  initialRawContent.value = rawContent.value
 })
+
+const onConflictDiscard = async () => {
+  const { raw } = await pullLatest()
+  if (raw !== null) {
+    rawContent.value = raw
+    initialRawContent.value = raw
+  }
+}
+
+const onConflictOverwrite = async () => {
+  if (latestSha.value) {
+    await performSave(latestSha.value)
+  }
+}
+
+const onConflictCancel = () => {
+  if (mode.value === "read") toggleMode()
+}
+
+const onBadgeClick = async () => {
+  try {
+    if (freshnessStatus.value !== "outdated") {
+      await checkFreshness()
+      if (freshnessStatus.value === "unauthorized") {
+        errorMessage("🔐 GitHub auth expired — please sign in again")
+      }
+      return
+    }
+
+    const hasUnsavedEdits = rawContent.value !== initialRawContent.value
+    if (hasUnsavedEdits) {
+      conflictOpen.value = true
+      return
+    }
+
+    const { raw, failureStatus } = await pullLatest()
+    if (raw !== null) {
+      rawContent.value = raw
+      initialRawContent.value = raw
+      return
+    }
+    if (failureStatus === "unauthorized") {
+      errorMessage("🔐 GitHub auth expired — please sign in again")
+    }
+  } catch (error) {
+    console.error("freshness badge click failed", error)
+    errorMessage("❌ Couldn't pull latest from GitHub")
+  }
+}
 </script>
 
 <template>
@@ -140,77 +295,135 @@ watch(mode, async (newMode) => {
       [`note-${sha}`]: true
     }"
   >
-    <a
+    <div class="title-stacked-note breadcrumbs text-sm" :class="titleClassName">
-      class="title-stacked-note-link"
+      <div class="action-bar">
-      @click.prevent="scrollToFocusedNote(props.sha)"
+        <note-freshness-badge
-    >
+          :status="freshnessStatus"
-      <div
+          :last-checked-at="lastCheckedAt"
-        class="title-stacked-note breadcrumbs text-sm"
+          @click="onBadgeClick"
-        :class="titleClassName"
+          class="action"
+        />
+        <button
+          v-if="isMarkdown && canPush"
+          class="action button is-text is-light"
+          :class="{ 'is-link': mode === 'edit' }"
+          :style="mode === 'edit' ? 'color: var(--color-primary)' : ''"
+          @click="toggleMode"
+        >
+          <svg
+            v-if="mode === 'read'"
+            xmlns="http://www.w3.org/2000/svg"
+            class="icon icon-tabler icon-tabler-edit"
+            width="24"
+            height="24"
+            viewBox="0 0 24 24"
+            stroke-width="1.5"
+            stroke="currentColor"
+            fill="none"
+            stroke-linecap="round"
+            stroke-linejoin="round"
+          >
+            <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+            <path
+              d="M7 7h-1a2 2 0 0 0 -2 2v9a2 2 0 0 0 2 2h9a2 2 0 0 0 2 -2v-1"
+            />
+            <path
+              d="M20.385 6.585a2.1 2.1 0 0 0 -2.97 -2.97l-8.415 8.385v3h3l8.385 -8.415z"
+            />
+            <path d="M16 5l3 3" />
+          </svg>
+          <svg
+            v-else
+            xmlns="http://www.w3.org/2000/svg"
+            class="icon icon-tabler icon-tabler-device-floppy"
+            width="24"
+            height="24"
+            viewBox="0 0 24 24"
+            stroke-width="2"
+            stroke="currentColor"
+            fill="none"
+            stroke-linecap="round"
+            stroke-linejoin="round"
+          >
+            <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+            <path
+              d="M6 4h10l4 4v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2"
+            />
+            <path d="M12 14m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
+            <path d="M14 4l0 4l-6 0l0 -4" />
+          </svg>
+        </button>
+        <button
+          v-if="isMarkdown && mode === 'edit' && canPush"
+          class="action button is-text is-light"
+          :title="isUploading ? 'Uploading…' : 'Upload image'"
+          :disabled="isUploading"
+          @click="fileInput?.click()"
+        >
+          <span
+            v-if="isUploading"
+            class="loading loading-spinner loading-sm"
+          ></span>
+          <svg
+            v-else
+            xmlns="http://www.w3.org/2000/svg"
+            class="icon icon-tabler icon-tabler-photo-plus"
+            width="24"
+            height="24"
+            viewBox="0 0 24 24"
+            stroke-width="1.5"
+            stroke="currentColor"
+            fill="none"
+            stroke-linecap="round"
+            stroke-linejoin="round"
+          >
+            <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+            <path d="M15 8h.01" />
+            <path
+              d="M12.5 21h-6.5a3 3 0 0 1 -3 -3v-12a3 3 0 0 1 3 -3h12a3 3 0 0 1 3 3v6.5"
+            />
+            <path d="M3 16l5 -5c.928 -.893 2.072 -.893 3 0l4 4" />
+            <path d="M14 14l1 -1c.928 -.893 2.072 -.893 3 0l2 2" />
+            <path d="M16 19h6" />
+            <path d="M19 16v6" />
+          </svg>
+        </button>
+        <input
+          ref="fileInput"
+          type="file"
+          accept="image/*"
+          class="hidden-input"
+          @change="onImagePicked"
+        />
+      </div>
+      <a
+        class="title-stacked-note-link"
+        @click.prevent="scrollToFocusedNote({ noteId: props.sha })"
       >
         <ul>
           <li v-for="(part, i) in breadcrumbs" :key="i">
             {{ part }}
           </li>
         </ul>
-      </div>
+      </a>
-    </a>
+    </div>
     <section class="text-content">
-      <button
+      <div v-if="mode === 'edit' && isMarkdown" class="edit">
-        class="action button is-text is-light"
+        <edit-note :key="editKey" v-model="rawContent" />
-        :class="{ 'is-link': mode === 'edit' }"
-        :style="mode === 'edit' ? 'color: var(--color-primary)' : ''"
-        @click="toggleMode"
-      >
-        <svg
-          v-if="mode === 'read'"
-          xmlns="http://www.w3.org/2000/svg"
-          class="icon icon-tabler icon-tabler-edit"
-          width="24"
-          height="24"
-          viewBox="0 0 24 24"
-          stroke-width="1.5"
-          stroke="currentColor"
-          fill="none"
-          stroke-linecap="round"
-          stroke-linejoin="round"
-        >
-          <path stroke="none" d="M0 0h24v24H0z" fill="none" />
-          <path
-            d="M7 7h-1a2 2 0 0 0 -2 2v9a2 2 0 0 0 2 2h9a2 2 0 0 0 2 -2v-1"
-          />
-          <path
-            d="M20.385 6.585a2.1 2.1 0 0 0 -2.97 -2.97l-8.415 8.385v3h3l8.385 -8.415z"
-          />
-          <path d="M16 5l3 3" />
-        </svg>
-        <svg
-          v-else
-          xmlns="http://www.w3.org/2000/svg"
-          class="icon icon-tabler icon-tabler-device-floppy"
-          width="24"
-          height="24"
-          viewBox="0 0 24 24"
-          stroke-width="2"
-          stroke="currentColor"
-          fill="none"
-          stroke-linecap="round"
-          stroke-linejoin="round"
-        >
-          <path stroke="none" d="M0 0h24v24H0z" fill="none" />
-          <path
-            d="M6 4h10l4 4v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2"
-          />
-          <path d="M12 14m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
-          <path d="M14 4l0 4l-6 0l0 -4" />
-        </svg>
-      </button>
-      <div v-if="mode === 'edit'" class="edit">
-        <edit-note v-model="rawContent" />
       </div>
-      <div v-if="mode === 'read'" class="note-content" v-html="content"></div>
+      <div
+        v-if="mode === 'read'"
+        class="note-content"
+        v-html="displayedContent"
+      ></div>
     </section>
     <linked-notes v-if="hasBacklinks && content" :sha="sha" />
+    <note-conflict-modal
+      v-model:open="conflictOpen"
+      @discard="onConflictDiscard"
+      @overwrite="onConflictOverwrite"
+      @cancel="onConflictCancel"
+    />
   </div>
 </template>
 
@@ -228,7 +441,7 @@ $border-color: rgba(18, 19, 58, 0.2);
   }
 
   section {
-    padding: 0 0.5rem 2rem;
+    padding: 0 0.5rem;
   }
 }
 
@@ -242,7 +455,6 @@ $border-color: rgba(18, 19, 58, 0.2);
   background-color: var(--color-base-100);
   color: var(--color-base-content);
   font-size: 0.8em;
-  overflow: hidden;
 
   ul,
   li {
@@ -257,14 +469,29 @@ $border-color: rgba(18, 19, 58, 0.2);
   flex: 1;
   scrollbar-width: none;
 
-  div {
+  > .edit,
+  > .note-content {
     height: 100%;
   }
 }
 
+.action-bar {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 0.25rem;
+}
+
+.hidden-input {
+  display: none;
+}
+
 .action {
-  float: right;
+  margin: 0;
-  margin: 0.2rem;
+
+  &:hover {
+    cursor: pointer;
+  }
 
   img {
     vertical-align: bottom;
@@ -274,9 +501,10 @@ $border-color: rgba(18, 19, 58, 0.2);
 @media screen and (max-width: 768px) {
   .stacked-note {
     padding: 0 0.75rem 1rem;
+    height: 100svh;
 
     section {
-      padding: 1rem 0 2rem;
+      padding: 1rem 0;
       overflow-x: auto;
     }
 
@@ -291,10 +519,12 @@ $border-color: rgba(18, 19, 58, 0.2);
   .stacked-note {
     border-top: 0;
     border-left: 1px solid $border-color;
+    position: sticky;
+    top: 0;
   }
 
   .title-stacked-note {
-    padding: 0 1rem;
+    padding: 0;
     transform-origin: 0 0;
     transform: rotate(90deg);
   }
@@ -302,6 +532,12 @@ $border-color: rgba(18, 19, 58, 0.2);
   a {
     white-space: nowrap;
   }
+
+  .action-bar {
+    .action {
+      transform: rotate(-90deg);
+    }
+  }
 }
 
 @media print {

src/components/StackedPublicNote.vue

@@ -1,11 +1,12 @@
 <script lang="ts" setup>
 import { computedAsync } from "@vueuse/core"
-import { computed, nextTick, ref, watch } from "vue"
+import { computed, ref, watch } from "vue"
 import { useRoute } from "vue-router"
 
 import SkeletonLoader from "@/components/SkeletonLoader.vue"
 import { useATProtoLinks } from "@/hooks/useATProtoLinks.hook"
 import { markdownBuilder } from "@/hooks/useMarkdown.hook"
+import { useMarkdownPostRender } from "@/hooks/useMarkdownPostRender.hook"
 import { useNoteOverlay } from "@/hooks/useNoteOverlay.hook"
 import { useRouteQueryStackedNotes } from "@/hooks/useRouteQueryStackedNotes.hook"
 import { getAuthor } from "@/modules/atproto/getAuthor"
@@ -76,14 +77,10 @@ const content = computed(() =>
     : ""
 )
 
-watch(
+useMarkdownPostRender(content, () => `.note-${classNameId.value}`, {
-  content,
+  onReady: () => listenToClick(),
-  async () => {
+  tikz: true
-    await nextTick()
+})
-    listenToClick()
-  },
-  { immediate: true }
-)
 </script>
 
 <template>
@@ -97,7 +94,7 @@ watch(
   >
     <a
       class="title-stacked-note-link"
-      @click.prevent="scrollToFocusedNote(didrkey)"
+      @click.prevent="scrollToFocusedNote({ noteId: didrkey })"
     >
       <div
         class="title-stacked-note breadcrumbs text-sm"
@@ -130,7 +127,7 @@ $border-color: rgba(18, 19, 58, 0.2);
   }
 
   section {
-    padding: 0 0.5rem 2rem;
+    padding: 0 0.5rem;
   }
 }
 
@@ -144,7 +141,6 @@ $border-color: rgba(18, 19, 58, 0.2);
   background-color: var(--color-base-100);
   color: var(--color-base-content);
   font-size: 0.8em;
-  overflow: hidden;
 
   ul,
   li {
@@ -178,7 +174,7 @@ $border-color: rgba(18, 19, 58, 0.2);
     padding: 0 0.75rem 1rem;
 
     section {
-      padding: 1rem 0 2rem;
+      padding: 1rem 0;
       overflow-x: auto;
     }
 
@@ -193,6 +189,8 @@ $border-color: rgba(18, 19, 58, 0.2);
   .stacked-note {
     border-top: 0;
     border-left: 1px solid $border-color;
+    position: sticky;
+    top: 0;
   }
 
   .title-stacked-note {

src/components/UserPill.spec.ts

@@ -0,0 +1,98 @@
+import { mount } from "@vue/test-utils"
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+import { ref } from "vue"
+
+const ghAccessToken = ref<string | null>(null)
+const ghUsername = ref<string | null>(null)
+const atIsLoggedIn = ref(false)
+const atHandle = ref<string | null>(null)
+const atAvatarUrl = ref<string | null>(null)
+
+vi.mock("@/hooks/useGitHubLogin.hook", () => ({
+  useGitHubLogin: () => ({
+    username: ghUsername,
+    accessToken: ghAccessToken
+  })
+}))
+
+vi.mock("@/hooks/useATProtoLogin.hook", () => ({
+  useATProtoLogin: () => ({
+    isLoggedIn: atIsLoggedIn,
+    handle: atHandle,
+    avatarUrl: atAvatarUrl
+  })
+}))
+
+import UserPill from "./UserPill.vue"
+
+describe("UserPill", () => {
+  beforeEach(() => {
+    ghAccessToken.value = null
+    ghUsername.value = null
+    atIsLoggedIn.value = false
+    atHandle.value = null
+    atAvatarUrl.value = null
+  })
+
+  afterEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it("shows the ghost 'Sign in' pill when nobody is logged in", () => {
+    const wrapper = mount(UserPill)
+    expect(wrapper.text()).toContain("Sign in")
+    expect(wrapper.classes()).toContain("profile-chip--ghost")
+  })
+
+  it("shows the GitHub username and initial when logged in via GitHub only", () => {
+    ghAccessToken.value = "tok"
+    ghUsername.value = "alice"
+
+    const wrapper = mount(UserPill)
+
+    expect(wrapper.text()).toContain("alice")
+    expect(wrapper.find(".profile-avatar-initial").text()).toBe("A")
+    expect(wrapper.find("img").exists()).toBe(false)
+    expect(wrapper.classes()).not.toContain("profile-chip--ghost")
+  })
+
+  it("shows the ATProto handle and avatar when logged in via ATProto", () => {
+    atIsLoggedIn.value = true
+    atHandle.value = "alice.bsky.social"
+    atAvatarUrl.value = "https://cdn.example.com/avatar.jpg"
+
+    const wrapper = mount(UserPill)
+
+    expect(wrapper.text()).toContain("alice.bsky.social")
+    const img = wrapper.find("img")
+    expect(img.exists()).toBe(true)
+    expect(img.attributes("src")).toBe("https://cdn.example.com/avatar.jpg")
+  })
+
+  it("prefers the ATProto handle over the GitHub username when both are present", () => {
+    ghAccessToken.value = "tok"
+    ghUsername.value = "alice-gh"
+    atIsLoggedIn.value = true
+    atHandle.value = "alice.bsky.social"
+
+    const wrapper = mount(UserPill)
+
+    expect(wrapper.text()).toContain("alice.bsky.social")
+    expect(wrapper.text()).not.toContain("alice-gh")
+  })
+
+  it("falls back to '?' initial when no name is available but a user is logged in", () => {
+    atIsLoggedIn.value = true
+    atHandle.value = ""
+
+    const wrapper = mount(UserPill)
+
+    expect(wrapper.find(".profile-avatar-initial").text()).toBe("?")
+  })
+
+  it("emits click when clicked", async () => {
+    const wrapper = mount(UserPill)
+    await wrapper.trigger("click")
+    expect(wrapper.emitted("click")).toHaveLength(1)
+  })
+})

src/components/UserPill.vue

@@ -0,0 +1,111 @@
+<script setup lang="ts">
+import { computed } from "vue"
+
+import { useATProtoLogin } from "@/hooks/useATProtoLogin.hook"
+import { useGitHubLogin } from "@/hooks/useGitHubLogin.hook"
+
+const { username, accessToken } = useGitHubLogin()
+const { isLoggedIn: isATProtoLoggedIn, handle, avatarUrl } = useATProtoLogin()
+
+defineEmits<{
+  click: []
+}>()
+
+const isGitHubLoggedIn = computed(() => !!accessToken.value)
+const isAnyUserLoggedIn = computed(
+  () => isGitHubLoggedIn.value || isATProtoLoggedIn.value
+)
+const displayUsername = computed(() => handle.value || username.value || "")
+const displayInitial = computed(() =>
+  (displayUsername.value[0] || "?").toUpperCase()
+)
+</script>
+
+<template>
+  <button
+    v-if="isAnyUserLoggedIn"
+    class="profile-chip"
+    type="button"
+    @click="$emit('click')"
+  >
+    <img
+      v-if="isATProtoLoggedIn && avatarUrl"
+      :src="avatarUrl"
+      class="profile-avatar-small"
+      alt="Profile"
+    />
+    <span v-else class="profile-avatar-small profile-avatar-initial">
+      {{ displayInitial }}
+    </span>
+    <span class="profile-name">{{ displayUsername }}</span>
+  </button>
+  <button
+    v-else
+    class="profile-chip profile-chip--ghost"
+    type="button"
+    @click="$emit('click')"
+  >
+    Sign in
+  </button>
+</template>
+
+<style scoped lang="scss">
+.profile-chip {
+  --pill-rule: color-mix(
+    in oklch,
+    var(--color-base-content) 12%,
+    var(--color-base-200)
+  );
+  --pill-accent: #e36598;
+  --pill-accent-wash: color-mix(
+    in oklch,
+    #e36598 12%,
+    var(--color-base-200)
+  );
+
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.25rem 0.75rem 0.25rem 0.25rem;
+  border-radius: 999px;
+  border: 1px solid var(--pill-rule);
+  background: transparent;
+  cursor: pointer;
+  color: var(--color-base-content);
+  transition:
+    border-color 0.15s,
+    background 0.15s;
+
+  &:hover {
+    border-color: var(--pill-accent);
+    background: var(--pill-accent-wash);
+  }
+
+  &.profile-chip--ghost {
+    padding: 0.35rem 0.9rem;
+    font-size: 0.95rem;
+  }
+}
+
+.profile-avatar-small {
+  width: 28px;
+  height: 28px;
+  border-radius: 50%;
+  object-fit: cover;
+  display: block;
+}
+
+.profile-avatar-initial {
+  background: var(--pill-accent, #e36598);
+  color: white;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  font-weight: 600;
+  font-size: 0.9rem;
+}
+
+.profile-name {
+  font-size: 0.95rem;
+}
+</style>

src/constants/note-width.ts

@@ -10,3 +10,7 @@ export const getNoteWidth = () => {
   }
   return cached
 }
+
+export const resetNoteWidthCache = () => {
+  cached = undefined
+}

src/data/DataType.enum.ts

@@ -7,5 +7,6 @@ export enum DataType {
   RepetitionCard = "RepetitionCard",
   History = "History",
   UserSettings = "UserSettings",
-  AtprotoSession = "AtprotoSession"
+  AtprotoSession = "AtprotoSession",
+  TikzCache = "TikzCache"
 }

src/data/data.ts

@@ -1,166 +1,34 @@
+import { wrap } from "comlink"
 import { nanoid } from "nanoid"
-import indexedDb from "pouchdb-adapter-indexeddb"
-import PouchDb from "pouchdb-browser"
 
 import { DataType } from "./DataType.enum"
 import { Model } from "./models/Model"
 
-PouchDb.plugin(indexedDb)
+export interface DataApi {
-
+  add<DT extends DataType>(model: Model<DT>): Promise<boolean>
-interface GetAllParams {
+  update<DT extends DataType, T extends Model<DT>>(model: T): Promise<boolean>
-  prefix?: string
+  bulkUpdate<DT extends DataType, T extends Model<DT>>(
-  includeDocs?: boolean
+    models: T[]
-  includeAttachments?: boolean
+  ): Promise<boolean>
-  keys?: string[]
+  remove(id: string): Promise<boolean>
-}
+  get<DT extends DataType, T extends Model<DT>>(id: string): Promise<T | null>
-
+  getOrCreate<DT extends DataType, T extends Model<DT>>(
-class Data {
-  // oxlint-disable-next-line typescript/ban-types
-  private readonly locale: PouchDB.Database<{}> | null = null
-
-  constructor() {
-    try {
-      this.locale = new PouchDb("remanso", {
-        adapter: "indexeddb"
-      })
-    } catch (error) {
-      console.warn("data error", error)
-    }
-  }
-
-  public async add<DT extends DataType>(model: Model<DT>): Promise<boolean> {
-    try {
-      const result = await this.locale?.put(model)
-      return result?.ok ?? false
-    } catch (error) {
-      console.warn(error)
-
-      return false
-    }
-  }
-
-  public async update<DT extends DataType, T extends Model<DT>>(
-    model: T
-  ): Promise<boolean> {
-    try {
-      if (!model._id) {
-        const result = await this.locale?.put(model)
-        return result?.ok ?? false
-      }
-
-      const oldModel = await this.get(model._id)
-      if (oldModel) {
-        const result = await this.locale?.put({ ...oldModel, ...model })
-        return result?.ok ?? false
-      }
-
-      const result = await this.locale?.put(model)
-      return result?.ok ?? false
-    } catch (error) {
-      console.warn(error)
-
-      return false
-    }
-  }
-
-  public async remove(id: string): Promise<boolean> {
-    try {
-      const doc = await this.get(id)
-      if (!doc) {
-        return false
-      }
-      const result = await this.locale?.put({
-        ...doc,
-        _deleted: true
-      })
-      return result?.ok ?? false
-    } catch {
-      return false
-    }
-  }
-
-  public async get<DT extends DataType, T extends Model<DT>>(
-    id: string
-  ): Promise<T | null> {
-    try {
-      return ((await this.locale?.get(id)) as T) || null
-    } catch {
-      return null
-    }
-  }
-
-  public async getOrCreate<DT extends DataType, T extends Model<DT>>(
     id: string,
     initialValue: T
-  ): Promise<T> {
+  ): Promise<T>
-    const element = await this.get<DT, T>(id)
+  getAll<DT extends DataType, T extends Model<DT>>(params: {
-
+    prefix?: string
-    if (element) {
+    includeDocs?: boolean
-      return element
+    includeAttachments?: boolean
-    }
+    keys?: string[]
-
+  }): Promise<T[]>
-    await data.add<DT>({ ...initialValue, _id: id })
-
-    return this.getOrCreate(id, initialValue)
-  }
-
-  public async getAll<DT extends DataType, T extends Model<DT>>({
-    prefix,
-    includeDocs = true,
-    includeAttachments = false,
-    keys = []
-  }: GetAllParams): Promise<T[]> {
-    if (!this.locale) {
-      return []
-    }
-
-    if (keys.length) {
-      const response = await this.locale.allDocs({
-        include_docs: includeDocs,
-        attachments: includeAttachments,
-        keys: keys.map((key) => this.generateId(prefix, key))
-      })
-
-      if (includeDocs) {
-        return response.rows
-          .map((row) => {
-            if ("error" in row) {
-              return null
-            }
-
-            return row.doc
-          })
-          .filter(Boolean) as T[]
-      } else {
-        return response.rows
-          .map((row) => {
-            if ("error" in row) {
-              return null
-            }
-
-            return { _id: row.id }
-          })
-          .filter(Boolean) as T[]
-      }
-    }
-
-    const response = await this.locale.allDocs({
-      include_docs: includeDocs,
-      attachments: includeAttachments,
-      startkey: prefix ? prefix : undefined,
-      endkey: prefix ? `${prefix}\ufff0` : undefined
-    })
-
-    return response.rows.map((row) => row.doc) as T[]
-  }
-
-  public generateId(type?: DataType | string, id?: string) {
-    if (!type) {
-      return id || nanoid()
-    }
-
-    return `${type}-${id || nanoid()}`
-  }
 }
 
-export const data = new Data()
+export const generateId = (type?: DataType | string, id?: string): string => {
+  if (!type) return id || nanoid()
+  return `${type}-${id || nanoid()}`
+}
+
+import DataWorker from "./data.worker?worker"
+
+export const data = wrap(new DataWorker()) as unknown as DataApi

src/data/data.worker.ts

@@ -0,0 +1,169 @@
+import { expose } from "comlink"
+import { nanoid } from "nanoid"
+import indexedDb from "pouchdb-adapter-indexeddb"
+import PouchDb from "pouchdb-browser"
+
+import { DataType } from "./DataType.enum"
+import { Model } from "./models/Model"
+
+PouchDb.plugin(indexedDb)
+
+interface GetAllParams {
+  prefix?: string
+  includeDocs?: boolean
+  includeAttachments?: boolean
+  keys?: string[]
+}
+
+class Data {
+  // oxlint-disable-next-line typescript/ban-types
+  private readonly locale: PouchDB.Database<{}> | null = null
+
+  constructor() {
+    try {
+      this.locale = new PouchDb("remanso", {
+        adapter: "indexeddb"
+      })
+    } catch (error) {
+      console.warn("data error", error)
+    }
+  }
+
+  private buildId(type?: DataType | string, id?: string): string {
+    if (!type) return id || nanoid()
+    return `${type}-${id || nanoid()}`
+  }
+
+  public async add<DT extends DataType>(model: Model<DT>): Promise<boolean> {
+    try {
+      const result = await this.locale?.put(model)
+      return result?.ok ?? false
+    } catch (error) {
+      console.warn(error)
+      return false
+    }
+  }
+
+  public async update<DT extends DataType, T extends Model<DT>>(
+    model: T
+  ): Promise<boolean> {
+    try {
+      if (!model._id) {
+        const result = await this.locale?.put(model)
+        return result?.ok ?? false
+      }
+
+      const oldModel = await this.get(model._id)
+      if (oldModel) {
+        const result = await this.locale?.put({ ...oldModel, ...model })
+        return result?.ok ?? false
+      }
+
+      const result = await this.locale?.put(model)
+      return result?.ok ?? false
+    } catch (error) {
+      console.warn(error)
+      return false
+    }
+  }
+
+  public async bulkUpdate<DT extends DataType, T extends Model<DT>>(
+    models: T[]
+  ): Promise<boolean> {
+    if (!this.locale || !models.length) return false
+    try {
+      const result = await this.locale.bulkDocs(models)
+      return result.every((r) => "ok" in r && r.ok)
+    } catch (error) {
+      console.warn(error)
+      return false
+    }
+  }
+
+  public async remove(id: string): Promise<boolean> {
+    try {
+      const doc = await this.get(id)
+      if (!doc) {
+        return false
+      }
+      const result = await this.locale?.put({
+        ...doc,
+        _deleted: true
+      })
+      return result?.ok ?? false
+    } catch {
+      return false
+    }
+  }
+
+  public async get<DT extends DataType, T extends Model<DT>>(
+    id: string
+  ): Promise<T | null> {
+    try {
+      return ((await this.locale?.get(id)) as T) || null
+    } catch {
+      return null
+    }
+  }
+
+  public async getOrCreate<DT extends DataType, T extends Model<DT>>(
+    id: string,
+    initialValue: T
+  ): Promise<T> {
+    const element = await this.get<DT, T>(id)
+
+    if (element) {
+      return element
+    }
+
+    await this.add<DT>({ ...initialValue, _id: id })
+
+    return this.getOrCreate(id, initialValue)
+  }
+
+  public async getAll<DT extends DataType, T extends Model<DT>>({
+    prefix,
+    includeDocs = true,
+    includeAttachments = false,
+    keys = []
+  }: GetAllParams): Promise<T[]> {
+    if (!this.locale) {
+      return []
+    }
+
+    if (keys.length) {
+      const response = await this.locale.allDocs({
+        include_docs: includeDocs,
+        attachments: includeAttachments,
+        keys: keys.map((key) => this.buildId(prefix, key))
+      })
+
+      if (includeDocs) {
+        return response.rows
+          .map((row) => {
+            if ("error" in row) return null
+            return row.doc
+          })
+          .filter(Boolean) as T[]
+      } else {
+        return response.rows
+          .map((row) => {
+            if ("error" in row) return null
+            return { _id: row.id }
+          })
+          .filter(Boolean) as T[]
+      }
+    }
+
+    const response = await this.locale.allDocs({
+      include_docs: includeDocs,
+      attachments: includeAttachments,
+      startkey: prefix ? prefix : undefined,
+      endkey: prefix ? `${prefix}\ufff0` : undefined
+    })
+
+    return response.rows.map((row) => row.doc) as T[]
+  }
+}
+
+expose(new Data())

src/data/models/TikzCache.ts

@@ -0,0 +1,6 @@
+import { DataType } from "@/data/DataType.enum"
+import { Model } from "@/data/models/Model"
+
+export interface TikzCache extends Model<DataType.TikzCache> {
+  svg: string
+}

src/hooks/useATProtoLinks.hook.ts

@@ -17,8 +17,8 @@ export const useATProtoLinks = (
   const { currentAtUri, mainNoteId } = options
 
   const linkNote = (event: Event) => {
-    const target = event.target as HTMLElement
+    const anchor = (event.target as HTMLElement).closest("a")
-    const href = target.getAttribute("href")
+    const href = anchor?.getAttribute("href")
 
     if (!href) {
       return
@@ -50,7 +50,7 @@ export const useATProtoLinks = (
         : `${params.shortDid}-${params.rkey}`
 
       if (noteId === toValue(mainNoteId)) {
-        scrollToFocusedNote(null)
+        scrollToFocusedNote()
         return
       }
 
@@ -67,7 +67,7 @@ export const useATProtoLinks = (
       const noteId = `${toShortDid(did)}-${rkey}`
 
       if (noteId === toValue(mainNoteId)) {
-        scrollToFocusedNote(null)
+        scrollToFocusedNote()
         return
       }
 

src/hooks/useATProtoLogin.hook.ts

@@ -14,14 +14,32 @@ import {
 
 const did = ref<string | null>(null)
 const handle = ref<string | null>(null)
+const avatarUrl = ref<string | null>(null)
 
 let init = true
 
+const fetchAvatar = async (actorDid: string) => {
+  try {
+    const res = await fetch(
+      `https://public.api.bsky.app/xrpc/app.bsky.actor.getProfile?actor=${encodeURIComponent(actorDid)}`
+    )
+    if (res.ok) {
+      const data = await res.json()
+      avatarUrl.value = data.avatar ?? null
+    }
+  } catch {
+    avatarUrl.value = null
+  }
+}
+
 const initializeAuth = async () => {
   // Load cached session from IndexedDB first (fast, local) so the UI can render immediately
   const stored = await loadSession()
   did.value = stored?.did ?? ""
   handle.value = stored?.handle ?? ""
+  if (stored?.did) {
+    fetchAvatar(stored.did)
+  }
 
   // Then restore OAuth session in the background (may involve network)
   const session = await restoreSession()
@@ -32,6 +50,7 @@ const initializeAuth = async () => {
     did.value = session.did
     handle.value = resolvedHandle
     await saveSession(session.did, resolvedHandle)
+    fetchAvatar(session.did)
 
     window.history.replaceState(
       null,
@@ -61,11 +80,13 @@ export const useATProtoLogin = () => {
     await clearSession()
     did.value = ""
     handle.value = ""
+    avatarUrl.value = null
   }
 
   return {
     did,
     handle,
+    avatarUrl,
     isLoggedIn,
     isATProtoReady,
     signIn,

src/hooks/useBacklinks.hook.ts

@@ -2,7 +2,7 @@ import { useAsyncState } from "@vueuse/core"
 import { ComputedRef, onUnmounted, toValue } from "vue"
 
 import { backlinkEventBus } from "@/bus/backlinkEventBus"
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { BacklinkNote } from "@/modules/note/models/BacklinkNote"
 
@@ -11,7 +11,7 @@ export const useBacklinks = (sha: string | ComputedRef<string>) => {
 
   const { state: backlink, execute } = useAsyncState(
     data.get<DataType.BacklinkNote, BacklinkNote>(
-      data.generateId(DataType.BacklinkNote, sha)
+      generateId(DataType.BacklinkNote, sha)
     ),
     null,
     {

src/hooks/useCheckboxCommit.hook.ts

@@ -35,7 +35,8 @@ export const useCheckboxCommit = ({
   initialContent,
   initialSha,
   containerSelector,
-  debounceMs = 1000
+  debounceMs = 1000,
+  enabled = true
 }: {
   user: string
   repo: string
@@ -44,6 +45,7 @@ export const useCheckboxCommit = ({
   initialSha: Ref<string> | string
   containerSelector: string
   debounceMs?: number
+  enabled?: Ref<boolean> | boolean
 }) => {
   const { updateFile } = useGitHubContent({ user, repo })
 
@@ -74,7 +76,7 @@ export const useCheckboxCommit = ({
 
     isCommitting.value = true
 
-    const newSha = await updateFile({
+    const { sha: newSha } = await updateFile({
       content: pendingContent.value,
       path: pathValue,
       sha: currentSha.value
@@ -91,6 +93,8 @@ export const useCheckboxCommit = ({
   const debouncedCommit = useDebounceFn(commitChanges, debounceMs)
 
   const handleCheckboxChange = (event: Event) => {
+    if (!toValue(enabled)) return
+
     const target = event.target as HTMLInputElement
 
     if (target.tagName !== "INPUT" || target.type !== "checkbox") {
@@ -128,8 +132,16 @@ export const useCheckboxCommit = ({
   const listenToCheckboxes = () => {
     removeListeners()
     const container = document.querySelector(containerSelector)
-    if (container) {
+    if (!container) return
+
+    if (toValue(enabled)) {
       container.addEventListener("change", handleCheckboxChange)
+    } else {
+      container
+        .querySelectorAll<HTMLInputElement>('input[type="checkbox"]')
+        .forEach((checkbox) => {
+          checkbox.disabled = true
+        })
     }
   }
 

src/hooks/useComputeBacklinks.hook.ts

@@ -1,7 +1,7 @@
 import { watch } from "vue"
 
 import { backlinkEventBus } from "@/bus/backlinkEventBus"
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { useFile } from "@/hooks/useFile.hook"
 import { Backlink } from "@/modules/note/models/Backlink"
@@ -14,93 +14,108 @@ import { confirmMessage } from "@/utils/notif"
 
 const isMarkdown = (filename?: string) => filename?.endsWith(".md") ?? false
 
+const yieldToMain = () =>
+  "scheduler" in globalThis
+    ? (
+        globalThis as unknown as { scheduler: { yield: () => Promise<void> } }
+      ).scheduler.yield()
+    : new Promise<void>((r) => setTimeout(r, 0))
+
 export const useComputeBacklinks = () => {
   const store = useUserRepoStore()
 
-  watch(store, async () => {
+  watch(
-    if (!store.userSettings?.backlink) {
+    () => store.files,
-      return
+    async () => {
-    }
+      await new Promise<void>((r) => setTimeout(r, 300))
 
-    let notifiedForComputation = false
+      if (!store.userSettings?.backlink) {
-
-    const backlinks: Map<string, Backlink[]> = new Map()
-
-    for (const file of store.files) {
-      if (!isMarkdown(file.path) || !file.sha) {
-        continue
-      }
-
-      const fileBacklinkId = data.generateId(DataType.BacklinkNote, file.sha)
-      const fileBacklink = await data.get<DataType.BacklinkNote, BacklinkNote>(
-        fileBacklinkId
-      )
-      if (fileBacklink) {
-        continue
-      }
-
-      if (!backlinks.has(file.sha)) {
-        backlinks.set(file.sha, [])
-      }
-
-      const { getContent } = useFile(file.sha, false)
-      const note = await getContent()
-
-      if (!note) {
         return
       }
 
-      const parser = new DOMParser()
+      let notifiedForComputation = false
-      const htmlDoc = parser.parseFromString(note, "text/html")
 
-      const links = htmlDoc.querySelectorAll("a")
+      const backlinks: Map<string, Backlink[]> = new Map()
 
-      for (const link of links) {
+      for (const file of store.files) {
-        const href = link.getAttribute("href") ?? ""
+        await yieldToMain()
 
-        if (isExternalLink(href) || !isMarkdown(href)) {
+        if (!isMarkdown(file.path) || !file.sha) {
           continue
         }
 
-        const path = resolvePath(file.path ?? "", href)
+        const fileBacklinkId = generateId(DataType.BacklinkNote, file.sha)
-        const backlinkFile = store.files.find((file) => file.path === path)
+        const fileBacklink = await data.get<
-
+          DataType.BacklinkNote,
-        if (!backlinkFile?.sha || !backlinkFile?.path) {
+          BacklinkNote
+        >(fileBacklinkId)
+        if (fileBacklink) {
           continue
         }
 
-        const previousBacklinks = backlinks.get(backlinkFile.sha) ?? []
+        if (!backlinks.has(file.sha)) {
-
+          backlinks.set(file.sha, [])
-        if (previousBacklinks.find((bl) => bl.sha === file.sha)) {
-          continue
         }
 
-        if (!notifiedForComputation) {
+        const { getContent } = useFile(file.sha, false)
-          notifiedForComputation = true
+        const note = await getContent()
-          confirmMessage("Updating backlinks...")
+
+        if (!note) {
+          return
         }
 
-        backlinks.set(backlinkFile.sha, [
+        const parser = new DOMParser()
-          ...previousBacklinks,
+        const htmlDoc = parser.parseFromString(note, "text/html")
-          {
+
-            sha: file.sha,
+        const links = htmlDoc.querySelectorAll("a")
-            title: filenameToNoteTitle(file.path ?? "")
+
+        for (const link of links) {
+          const href = link.getAttribute("href") ?? ""
+
+          if (isExternalLink(href) || !isMarkdown(href)) {
+            continue
           }
-        ])
-      }
-    }
 
-    for (const [sha, fileBacklinks] of backlinks) {
+          const path = resolvePath(file.path ?? "", href)
-      const fileBacklinkId = data.generateId(DataType.BacklinkNote, sha)
+          const backlinkFile = store.files.find((file) => file.path === path)
-      const backlinkNote: BacklinkNote = {
+
-        _id: fileBacklinkId,
+          if (!backlinkFile?.sha || !backlinkFile?.path) {
-        $type: DataType.BacklinkNote,
+            continue
-        sha: sha,
+          }
-        links: fileBacklinks
+
+          const previousBacklinks = backlinks.get(backlinkFile.sha) ?? []
+
+          if (previousBacklinks.find((bl) => bl.sha === file.sha)) {
+            continue
+          }
+
+          if (!notifiedForComputation) {
+            notifiedForComputation = true
+            confirmMessage("Updating backlinks...")
+          }
+
+          backlinks.set(backlinkFile.sha, [
+            ...previousBacklinks,
+            {
+              sha: file.sha,
+              title: filenameToNoteTitle(file.path ?? "")
+            }
+          ])
+        }
       }
 
-      await data.update(backlinkNote)
+      for (const [sha, fileBacklinks] of backlinks) {
-      backlinkEventBus.emit({ fileSha: sha })
+        const fileBacklinkId = generateId(DataType.BacklinkNote, sha)
+        const backlinkNote: BacklinkNote = {
+          _id: fileBacklinkId,
+          $type: DataType.BacklinkNote,
+          sha: sha,
+          links: fileBacklinks
+        }
+
+        await data.update(backlinkNote)
+        backlinkEventBus.emit({ fileSha: sha })
+      }
     }
-  })
+  )
 }

src/hooks/useEditionMode.spec.ts

@@ -0,0 +1,76 @@
+import { mount } from "@vue/test-utils"
+import { afterEach, describe, expect, it, vi } from "vitest"
+import { defineComponent, ref } from "vue"
+
+const escape = ref(false)
+vi.mock("@vueuse/core", () => ({
+  useMagicKeys: () => ({ escape })
+}))
+
+import { useEditionMode } from "./useEditionMode"
+
+const host = (slot: (api: ReturnType<typeof useEditionMode>) => void) =>
+  mount(
+    defineComponent({
+      template: "<div/>",
+      setup() {
+        const api = useEditionMode()
+        slot(api)
+        return api
+      }
+    })
+  )
+
+describe("useEditionMode", () => {
+  afterEach(() => {
+    escape.value = false
+  })
+
+  it("starts in read mode", () => {
+    let mode: unknown
+    host((api) => {
+      mode = api.mode.value
+    })
+    expect(mode).toBe("read")
+  })
+
+  it("toggleMode flips read ↔ edit", () => {
+    let api: ReturnType<typeof useEditionMode> | undefined
+    host((a) => {
+      api = a
+    })
+
+    api!.toggleMode()
+    expect(api!.mode.value).toBe("edit")
+
+    api!.toggleMode()
+    expect(api!.mode.value).toBe("read")
+  })
+
+  it("escape key exits edit mode", async () => {
+    let api: ReturnType<typeof useEditionMode> | undefined
+    host((a) => {
+      a.toggleMode()
+      api = a
+    })
+
+    expect(api!.mode.value).toBe("edit")
+
+    escape.value = true
+    await new Promise((r) => setTimeout(r, 0))
+
+    expect(api!.mode.value).toBe("read")
+  })
+
+  it("escape key is a no-op when already in read mode", async () => {
+    let api: ReturnType<typeof useEditionMode> | undefined
+    host((a) => {
+      api = a
+    })
+
+    escape.value = true
+    await new Promise((r) => setTimeout(r, 0))
+
+    expect(api!.mode.value).toBe("read")
+  })
+})

src/hooks/useForm.hook.spec.ts

@@ -0,0 +1,67 @@
+import { mount } from "@vue/test-utils"
+import { beforeEach, describe, expect, it, vi } from "vitest"
+import { defineComponent } from "vue"
+
+const push = vi.fn()
+vi.mock("vue-router", () => ({
+  useRouter: () => ({ push })
+}))
+
+import { useForm } from "./useForm.hook"
+
+const host = () => {
+  let api!: ReturnType<typeof useForm>
+  mount(
+    defineComponent({
+      template: "<div/>",
+      setup() {
+        api = useForm()
+        return api
+      }
+    })
+  )
+  return api
+}
+
+describe("useForm", () => {
+  beforeEach(() => {
+    push.mockReset()
+  })
+
+  it("starts with empty user and repo inputs", () => {
+    const api = host()
+    expect(api.userInput.value).toBe("")
+    expect(api.repoInput.value).toBe("")
+  })
+
+  it("submit is a no-op when userInput is empty", () => {
+    const api = host()
+    api.repoInput.value = "notes"
+
+    api.submit()
+
+    expect(push).not.toHaveBeenCalled()
+  })
+
+  it("submit is a no-op when repoInput is empty", () => {
+    const api = host()
+    api.userInput.value = "alice"
+
+    api.submit()
+
+    expect(push).not.toHaveBeenCalled()
+  })
+
+  it("submit pushes the FluxNoteView route with user/repo params", () => {
+    const api = host()
+    api.userInput.value = "alice"
+    api.repoInput.value = "notes"
+
+    api.submit()
+
+    expect(push).toHaveBeenCalledWith({
+      name: "FluxNoteView",
+      params: { user: "alice", repo: "notes" }
+    })
+  })
+})

src/hooks/useGitHubContent.hook.spec.ts

@@ -0,0 +1,197 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+vi.mock("@/modules/repo/services/octo", () => ({
+  getOctokit: vi.fn(),
+  runWithAuthRetry: vi.fn()
+}))
+
+vi.mock("@/utils/notif", () => ({
+  confirmMessage: vi.fn(),
+  errorMessage: vi.fn()
+}))
+
+import { getOctokit, runWithAuthRetry } from "@/modules/repo/services/octo"
+import { confirmMessage, errorMessage } from "@/utils/notif"
+
+import { useGitHubContent } from "./useGitHubContent.hook"
+
+const make = () => useGitHubContent({ user: "alice", repo: "notes" })
+
+describe("useGitHubContent.fetchLatestSha", () => {
+  beforeEach(() => {
+    vi.mocked(runWithAuthRetry).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns the sha from a file response", async () => {
+    vi.mocked(runWithAuthRetry).mockResolvedValue({
+      data: { sha: "abc123" }
+    } as never)
+
+    expect(await make().fetchLatestSha("a.md")).toEqual({
+      kind: "ok",
+      sha: "abc123"
+    })
+  })
+
+  it("returns sha=null when the path resolves to a directory (array response)", async () => {
+    vi.mocked(runWithAuthRetry).mockResolvedValue({ data: [] } as never)
+
+    expect(await make().fetchLatestSha("dir/")).toEqual({
+      kind: "ok",
+      sha: null
+    })
+  })
+
+  it("returns sha=null when the data object has no sha field", async () => {
+    vi.mocked(runWithAuthRetry).mockResolvedValue({
+      data: { type: "submodule" }
+    } as never)
+
+    expect(await make().fetchLatestSha("path")).toEqual({
+      kind: "ok",
+      sha: null
+    })
+  })
+
+  it("returns kind=unauthorized on 401", async () => {
+    vi.mocked(runWithAuthRetry).mockRejectedValue(
+      Object.assign(new Error("Unauthorized"), { status: 401 })
+    )
+
+    expect(await make().fetchLatestSha("path")).toEqual({
+      kind: "unauthorized"
+    })
+  })
+
+  it("returns kind=offline on non-401 errors (404, network, etc.)", async () => {
+    vi.mocked(runWithAuthRetry).mockRejectedValue(
+      Object.assign(new Error("Not found"), { status: 404 })
+    )
+    expect(await make().fetchLatestSha("path")).toEqual({ kind: "offline" })
+
+    vi.mocked(runWithAuthRetry).mockRejectedValue(new Error("network"))
+    expect(await make().fetchLatestSha("path")).toEqual({ kind: "offline" })
+  })
+})
+
+describe("useGitHubContent.updateFile / createFile (putFile)", () => {
+  const mockOctokitRequest = vi.fn()
+
+  beforeEach(() => {
+    mockOctokitRequest.mockReset()
+    vi.mocked(getOctokit).mockResolvedValue({
+      request: mockOctokitRequest
+    } as never)
+    vi.mocked(confirmMessage).mockReset()
+    vi.mocked(errorMessage).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns the new sha and calls confirmMessage on success", async () => {
+    mockOctokitRequest.mockResolvedValue({
+      data: { content: { sha: "new-sha" } }
+    })
+
+    const result = await make().updateFile({
+      content: "# hello",
+      path: "a.md",
+      sha: "old-sha"
+    })
+
+    expect(result).toEqual({ sha: "new-sha", conflict: false })
+    expect(confirmMessage).toHaveBeenCalledWith("✅ Note saved")
+  })
+
+  it("flags conflict=true on 409 and 422 responses", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    for (const status of [409, 422]) {
+      mockOctokitRequest.mockRejectedValueOnce(
+        Object.assign(new Error("Conflict"), { status })
+      )
+      const result = await make().createFile({ content: "x", path: "a.md" })
+      expect(result).toEqual({ sha: null, conflict: true })
+    }
+    expect(errorMessage).toHaveBeenCalledWith(
+      "⚠ Conflict: this note changed on GitHub"
+    )
+  })
+
+  it("returns conflict=false and calls errorMessage on non-conflict errors", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    mockOctokitRequest.mockRejectedValue(
+      Object.assign(new Error("Server error"), { status: 500 })
+    )
+
+    const result = await make().updateFile({
+      content: "x",
+      path: "a.md",
+      sha: "old"
+    })
+
+    expect(result).toEqual({ sha: null, conflict: false })
+    expect(errorMessage).toHaveBeenCalledWith("❌ Note could not be saved")
+  })
+})
+
+describe("useGitHubContent.uploadBinaryFile", () => {
+  const mockOctokitRequest = vi.fn()
+
+  beforeEach(() => {
+    mockOctokitRequest.mockReset()
+    vi.mocked(getOctokit).mockResolvedValue({
+      request: mockOctokitRequest
+    } as never)
+    vi.mocked(errorMessage).mockReset()
+    vi.mocked(confirmMessage).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("uploads pre-base64-encoded content without re-encoding", async () => {
+    mockOctokitRequest.mockResolvedValue({
+      data: { content: { sha: "img-sha" } }
+    })
+
+    const result = await make().uploadBinaryFile({
+      base64: "ZGF0YQ==",
+      path: "img/cover.png"
+    })
+
+    expect(result).toEqual({ sha: "img-sha", conflict: false })
+    expect(mockOctokitRequest).toHaveBeenCalledWith(
+      "PUT /repos/{owner}/{repo}/contents/{+path}",
+      expect.objectContaining({
+        path: "img/cover.png",
+        content: "ZGF0YQ=="
+      })
+    )
+    expect(confirmMessage).toHaveBeenCalledWith("✅ Image uploaded")
+  })
+
+  it("surfaces a conflict on existing file (422)", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    mockOctokitRequest.mockRejectedValue(
+      Object.assign(new Error("Exists"), { status: 422 })
+    )
+
+    const result = await make().uploadBinaryFile({
+      base64: "Zm9v",
+      path: "img.png"
+    })
+
+    expect(result).toEqual({ sha: null, conflict: true })
+    expect(errorMessage).toHaveBeenCalledWith(
+      "⚠ A file already exists at this path on GitHub"
+    )
+  })
+})

src/hooks/useGitHubContent.hook.ts

@@ -1,7 +1,15 @@
-import { getOctokit } from "@/modules/repo/services/octo"
+import { getOctokit, runWithAuthRetry } from "@/modules/repo/services/octo"
 import { encodeUTF8ToBase64 } from "@/utils/decodeBase64ToUTF8"
 import { confirmMessage, errorMessage } from "@/utils/notif"
 
+const isConflictStatus = (status: number) => status === 409 || status === 422
+const isUnauthorizedStatus = (status: number | undefined) => status === 401
+
+export type FetchShaResult =
+  | { kind: "ok"; sha: string | null }
+  | { kind: "unauthorized" }
+  | { kind: "offline" }
+
 export const useGitHubContent = ({
   user,
   repo
@@ -9,6 +17,74 @@ export const useGitHubContent = ({
   user: string
   repo: string
 }) => {
+  const fetchLatestSha = async (path: string): Promise<FetchShaResult> => {
+    try {
+      const response = await runWithAuthRetry((octokit) =>
+        octokit.request("GET /repos/{owner}/{repo}/contents/{+path}", {
+          owner: user,
+          repo,
+          path,
+          headers: { "X-GitHub-Api-Version": "2026-03-10" }
+        })
+      )
+      const data = response?.data
+      if (Array.isArray(data) || !data) return { kind: "ok", sha: null }
+      return { kind: "ok", sha: "sha" in data ? data.sha : null }
+    } catch (error) {
+      const status = (error as { status?: number })?.status
+      if (isUnauthorizedStatus(status)) return { kind: "unauthorized" }
+      return { kind: "offline" }
+    }
+  }
+
+  const putRaw = async ({
+    contentBase64,
+    path,
+    sha,
+    message,
+    successMessage,
+    conflictMessage,
+    failureMessage
+  }: {
+    contentBase64: string
+    path: string
+    sha?: string
+    message: string
+    successMessage: string
+    conflictMessage: string
+    failureMessage: string
+  }): Promise<{ sha: string | null; conflict: boolean }> => {
+    try {
+      const octokit = await getOctokit()
+
+      const response = await octokit.request(
+        "PUT /repos/{owner}/{repo}/contents/{+path}",
+        {
+          owner: user,
+          repo,
+          path,
+          message,
+          content: contentBase64,
+          sha
+        }
+      )
+
+      confirmMessage(successMessage)
+
+      return { sha: response?.data.content?.sha ?? null, conflict: false }
+    } catch (error) {
+      const status = (error as { status?: number })?.status
+      if (status && isConflictStatus(status)) {
+        errorMessage(conflictMessage)
+        console.warn(error)
+        return { sha: null, conflict: true }
+      }
+      errorMessage(failureMessage)
+      console.warn(error)
+      return { sha: null, conflict: false }
+    }
+  }
+
   const putFile = async ({
     content,
     path,
@@ -17,37 +93,42 @@ export const useGitHubContent = ({
     content: string
     path: string
     sha?: string
-  }) => {
+  }): Promise<{ sha: string | null; conflict: boolean }> =>
-    try {
+    putRaw({
-      const octokit = await getOctokit()
+      contentBase64: encodeUTF8ToBase64(content),
+      path,
+      sha,
+      message: `Updating ${path} from Remanso`,
+      successMessage: "✅ Note saved",
+      conflictMessage: "⚠ Conflict: this note changed on GitHub",
+      failureMessage: "❌ Note could not be saved"
+    })
 
-      const response = await octokit.request(
+  const uploadBinaryFile = async ({
-        `PUT /repos/{owner}/{repo}/contents/{path}`,
+    base64,
-        {
+    path
-          owner: user,
+  }: {
-          repo,
+    base64: string
-          path,
+    path: string
-          message: `Updating ${path} from Remanso`,
+  }): Promise<{ sha: string | null; conflict: boolean }> =>
-          content: encodeUTF8ToBase64(content),
+    putRaw({
-          sha
+      contentBase64: base64,
-        }
+      path,
-      )
+      message: `Uploading ${path} from Remanso`,
-
+      successMessage: "✅ Image uploaded",
-      confirmMessage("✅ Note saved")
+      conflictMessage: "⚠ A file already exists at this path on GitHub",
-
+      failureMessage: "❌ Image could not be uploaded"
-      return response?.data.content?.sha ?? null
+    })
-    } catch (error) {
-      errorMessage("❌ Note could not be saved")
-      console.warn(error)
-    }
-
-    return null
-  }
 
   return {
-    updateFile: async (props: { content: string; path: string; sha: string }) =>
+    fetchLatestSha,
-      putFile(props),
+    updateFile: async (props: {
+      content: string
+      path: string
+      sha: string
+    }) => putFile(props),
     createFile: async (props: { content: string; path: string }) =>
-      putFile(props)
+      putFile(props),
+    uploadBinaryFile
   }
 }

src/hooks/useImageUpload.hook.spec.ts

@@ -0,0 +1,164 @@
+import { createPinia, setActivePinia } from "pinia"
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+const uploadBinaryFile = vi.fn()
+const registerUploadedFile = vi.fn()
+
+vi.mock("@/hooks/useGitHubContent.hook", () => ({
+  useGitHubContent: () => ({ uploadBinaryFile })
+}))
+
+vi.mock("@/modules/repo/store/userRepo.store", () => ({
+  useUserRepoStore: () => ({
+    files: [{ path: "alice/notes/already-here.png", sha: "x" }],
+    registerUploadedFile
+  })
+}))
+
+vi.mock("@/utils/notif", () => ({
+  errorMessage: vi.fn()
+}))
+
+import { errorMessage } from "@/utils/notif"
+
+import { useImageUpload } from "./useImageUpload.hook"
+
+const makeFile = (name: string, body = "fake-image-bytes") =>
+  new File([body], name, { type: "image/png" })
+
+describe("useImageUpload", () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+    uploadBinaryFile.mockReset()
+    registerUploadedFile.mockReset()
+    vi.mocked(errorMessage).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns null and shows an error when notePath is missing", async () => {
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: undefined
+    })
+
+    expect(await uploadImage(makeFile("img.png"))).toBeNull()
+    expect(errorMessage).toHaveBeenCalledWith("❌ Image upload failed")
+    expect(uploadBinaryFile).not.toHaveBeenCalled()
+  })
+
+  it("uploads to the note's directory using the note basename and the file extension", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: "new-sha", conflict: false })
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "alice/notes/my-note.md"
+    })
+
+    const result = await uploadImage(makeFile("photo.PNG"))
+
+    expect(result).toEqual({ filename: "my-note.png" })
+    expect(uploadBinaryFile).toHaveBeenCalledWith(
+      expect.objectContaining({
+        path: "alice/notes/my-note.png"
+      })
+    )
+  })
+
+  it("deduplicates filenames against existing files in the store", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: "new-sha", conflict: false })
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "alice/notes/already-here.md"
+    })
+
+    const result = await uploadImage(makeFile("photo.png"))
+
+    expect(result?.filename).toBe("already-here-2.png")
+  })
+
+  it("returns null on conflict and does NOT register the file", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: null, conflict: true })
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "x/note.md"
+    })
+
+    expect(await uploadImage(makeFile("img.png"))).toBeNull()
+    expect(registerUploadedFile).not.toHaveBeenCalled()
+  })
+
+  it("registers the uploaded file in the store on success", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: "abc", conflict: false })
+    const file = makeFile("img.png", "data")
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "x/note.md"
+    })
+
+    await uploadImage(file)
+
+    expect(registerUploadedFile).toHaveBeenCalledWith({
+      path: "x/note.png",
+      sha: "abc",
+      type: "blob",
+      size: file.size
+    })
+  })
+
+  it("falls back to .png when the file name has no extension", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: "abc", conflict: false })
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "x/note.md"
+    })
+
+    await uploadImage(makeFile("noextension"))
+
+    expect(uploadBinaryFile).toHaveBeenCalledWith(
+      expect.objectContaining({ path: "x/note.png" })
+    )
+  })
+
+  it("uses the root path when the note is at the repo root", async () => {
+    uploadBinaryFile.mockResolvedValue({ sha: "abc", conflict: false })
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "root.md"
+    })
+
+    await uploadImage(makeFile("img.png"))
+
+    expect(uploadBinaryFile).toHaveBeenCalledWith(
+      expect.objectContaining({ path: "root.png" })
+    )
+  })
+
+  it("returns null and notifies on unexpected errors", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    uploadBinaryFile.mockRejectedValue(new Error("boom"))
+
+    const { uploadImage } = useImageUpload({
+      user: "alice",
+      repo: "notes",
+      notePath: "x/note.md"
+    })
+
+    expect(await uploadImage(makeFile("img.png"))).toBeNull()
+    expect(errorMessage).toHaveBeenCalledWith("❌ Image upload failed")
+  })
+})

src/hooks/useImageUpload.hook.ts

@@ -0,0 +1,104 @@
+import { Ref, toValue } from "vue"
+
+import { useGitHubContent } from "@/hooks/useGitHubContent.hook"
+import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
+import { errorMessage } from "@/utils/notif"
+import { uniqueFilename } from "@/utils/uniqueFilename"
+
+const arrayBufferToBase64 = (buffer: ArrayBuffer): string => {
+  const bytes = new Uint8Array(buffer)
+  const chunkSize = 0x8000
+  let binary = ""
+  for (let i = 0; i < bytes.length; i += chunkSize) {
+    const chunk = bytes.subarray(i, i + chunkSize)
+    binary += String.fromCharCode(...chunk)
+  }
+  return btoa(binary)
+}
+
+const splitPath = (fullPath: string): { directory: string; filename: string } => {
+  const lastSlash = fullPath.lastIndexOf("/")
+  if (lastSlash === -1) return { directory: "", filename: fullPath }
+  return {
+    directory: fullPath.slice(0, lastSlash),
+    filename: fullPath.slice(lastSlash + 1)
+  }
+}
+
+const stripMarkdownExtension = (filename: string): string =>
+  filename.replace(/\.(md|markdown|mdx)$/i, "")
+
+const extractExtension = (filename: string): string => {
+  const dot = filename.lastIndexOf(".")
+  if (dot <= 0) return ".png"
+  return filename.slice(dot).toLowerCase()
+}
+
+export const useImageUpload = ({
+  user,
+  repo,
+  notePath
+}: {
+  user: string
+  repo: string
+  notePath: Ref<string | undefined> | string | undefined
+}) => {
+  const store = useUserRepoStore()
+  const { uploadBinaryFile } = useGitHubContent({ user, repo })
+
+  const uploadImage = async (
+    file: File
+  ): Promise<{ filename: string } | null> => {
+    const currentNotePath = toValue(notePath)
+    if (!currentNotePath) {
+      errorMessage("❌ Image upload failed")
+      return null
+    }
+
+    try {
+      const { directory, filename: noteFilename } = splitPath(currentNotePath)
+      const basename = stripMarkdownExtension(noteFilename)
+      const extension = extractExtension(file.name)
+
+      const existingPaths = store.files
+        .map((f) => f.path)
+        .filter((p): p is string => typeof p === "string")
+
+      const filename = uniqueFilename({
+        basename,
+        extension,
+        existingPaths,
+        directory
+      })
+
+      const targetPath = directory ? `${directory}/${filename}` : filename
+
+      const buffer = await file.arrayBuffer()
+      const base64 = arrayBufferToBase64(buffer)
+
+      const { sha, conflict } = await uploadBinaryFile({
+        base64,
+        path: targetPath
+      })
+
+      if (conflict || !sha) {
+        return null
+      }
+
+      store.registerUploadedFile({
+        path: targetPath,
+        sha,
+        type: "blob",
+        size: file.size
+      })
+
+      return { filename }
+    } catch (error) {
+      console.warn("image upload failed", error)
+      errorMessage("❌ Image upload failed")
+      return null
+    }
+  }
+
+  return { uploadImage }
+}

src/hooks/useLinks.hook.ts

@@ -11,14 +11,23 @@ export const useLinks = (
   const store = useUserRepoStore()
 
   const linkNote: EventListener = (event) => {
-    const target = event.target as HTMLElement
+    const anchor = (event.target as HTMLElement).closest("a")
-    const href = target.getAttribute("href")
+    const href = anchor?.getAttribute("href")
 
     if (!href) {
       return
     }
 
     if (href.startsWith("#")) {
+      event.preventDefault()
+      const id = href.slice(1)
+      const container = document.querySelector(`.${toValue(className)}`)
+      const heading = container?.querySelector(`#${CSS.escape(id)}`)
+      heading?.scrollIntoView({
+        block: "start",
+        inline: "nearest",
+        behavior: "smooth"
+      })
       return
     }
 
@@ -30,8 +39,13 @@ export const useLinks = (
       return
     }
 
+    const hashIndex = href.indexOf("#")
+    const path = hashIndex === -1 ? href : href.slice(0, hashIndex)
+    const hash = hashIndex === -1 ? undefined : href.slice(hashIndex + 1)
+
     noteEventBus.emit({
-      path: href,
+      path,
+      hash,
       currentNoteSHA: toValue(sha),
       user: store.user,
       repo: store.repo

src/hooks/useMarkdown.hook.ts

@@ -1,19 +1,37 @@
+import type { MarkdownItTabData, MarkdownItTabInfo } from "@mdit/plugin-tab"
+import { tab } from "@mdit/plugin-tab"
 import markdownItKatex from "@vscode/markdown-it-katex"
+import GithubSlugger from "github-slugger"
 import MarkdownIt, { Options } from "markdown-it"
 import Renderer, { type RenderRuleRecord } from "markdown-it/lib/renderer.mjs"
 import type Token from "markdown-it/lib/token.mjs"
+import markdownItAnchor from "markdown-it-anchor"
 import blockEmbedPlugin from "markdown-it-block-embed"
 import markdownItCheckbox from "markdown-it-checkbox"
 import MarkdownItGitHubAlerts from "markdown-it-github-alerts"
 import markdownItIframe from "markdown-it-iframe"
 import Shikiji from "markdown-it-shikiji"
 import mermaid from "mermaid"
+import type { LanguageRegistration } from "shikiji-core"
 import { Ref, toValue } from "vue"
 
-import { decodeBase64ToUTF8 } from "@/utils/decodeBase64ToUTF8"
+import { data } from "@/data/data"
+import { DataType } from "@/data/DataType.enum"
+import type { TikzCache } from "@/data/models/TikzCache"
+import alloyGrammar from "@/utils/alloy.tmLanguage.json"
+import {
+  decodeBase64ToUTF8,
+  encodeUTF8ToBase64
+} from "@/utils/decodeBase64ToUTF8"
 import { html5Media } from "@/utils/markdown/markdown-html5-media"
 import { markdownItTablerIcons } from "@/utils/markdown/markdown-it-tabler-icons"
 
+const TIKZ_BUNDLE_URL =
+  "https://cdn.jsdelivr.net/gh/artisticat1/obsidian-tikzjax@0.5.2/tikzjax.js"
+const TIKZ_STYLES_URL =
+  "https://cdn.jsdelivr.net/gh/artisticat1/obsidian-tikzjax@0.5.2/styles.css"
+const TIKZ_RENDER_TIMEOUT_MS = 30000
+
 const markdownItMermaidExtractor = (md: MarkdownIt) => {
   const defaultFence =
     md.renderer.rules.fence ||
@@ -45,11 +63,49 @@ const markdownItMermaidExtractor = (md: MarkdownIt) => {
   }
 }
 
+const markdownItTikzExtractor = (md: MarkdownIt) => {
+  const defaultFence =
+    md.renderer.rules.fence ||
+    function (
+      tokens: Array<Token>,
+      index: number,
+      options: Options,
+      _: unknown,
+      self: Renderer
+    ) {
+      return self.renderToken(tokens, index, options)
+    }
+
+  md.renderer.rules.fence = function (
+    tokens: Array<Token>,
+    index: number,
+    options: Options,
+    env: unknown,
+    self: Renderer
+  ) {
+    const token = tokens[index]
+
+    if (token.info.trim() === "tikz") {
+      const encoded = encodeUTF8ToBase64(token.content)
+      return `<pre class="tikz" data-tikz-source="${encoded}"><span class="tikz-loading">Rendering TikZ…</span></pre>\n`
+    }
+
+    return defaultFence(tokens, index, options, env, self)
+  }
+}
+
+const slugger = new GithubSlugger()
+
+let tabGroupCounter = 0
+let currentTabGroup = 0
+let currentTabActiveSet = false
+
 const md = new MarkdownIt({
   typographer: true,
   quotes: ["«\xA0", "\xA0»", "‹\xA0", "\xA0›"]
 })
   .use(markdownItMermaidExtractor)
+  .use(markdownItTikzExtractor)
   .use(html5Media)
   .use(blockEmbedPlugin, {
     youtube: {
@@ -64,17 +120,32 @@ const md = new MarkdownIt({
   })
   .use(MarkdownItGitHubAlerts)
   .use(markdownItTablerIcons)
+  .use(tab, {
+    name: "tabs",
+    openRender: (info: MarkdownItTabInfo) => {
+      currentTabGroup = ++tabGroupCounter
+      currentTabActiveSet = info.active >= 0
+      return '<div class="tabs tabs-box">\n'
+    },
+    closeRender: () => "</div>\n",
+    tabOpenRender: (data: MarkdownItTabData) => {
+      const isChecked =
+        data.isActive || (!currentTabActiveSet && data.index === 0)
+      const checked = isChecked ? " checked" : ""
+      const title = data.title.replace(/"/g, "&quot;")
+      return `<input type="radio" name="md-tabs-${currentTabGroup}" class="tab" aria-label="${title}"${checked}>\n<div class="tab-content bg-base-100 border-base-300 rounded-box p-2">\n`
+    },
+    tabCloseRender: () => "</div>\n"
+  })
+  .use(markdownItAnchor, {
+    slugify: (s: string) => slugger.slug(s)
+  })
 
-let shikijiInitialized = false
+let shikijiPromise: Promise<void> | null = null
 
-export const useShikiji = async () => {
+export const useShikiji = (): Promise<void> => {
-  if (shikijiInitialized) {
+  if (!shikijiPromise) {
-    return
+    shikijiPromise = Shikiji({
-  }
-
-  shikijiInitialized = true
-  md.use(
-    await Shikiji({
       themes: {
         light: "vitesse-light",
         dark: "vitesse-black"
@@ -83,19 +154,28 @@ export const useShikiji = async () => {
         "bash",
         "javascript",
         "typescript",
+        "tsx",
         "markdown",
         "mermaid",
         "html",
         "css",
-        "json"
+        "json",
+        {
+          ...alloyGrammar,
+          name: "alloy",
+          aliases: ["als"]
+        } as unknown as LanguageRegistration
       ]
+    }).then((plugin) => {
+      md.use(plugin)
     })
-  )
+  }
+  return shikijiPromise
 }
 
 let mermaidInitialized = false
 
-export const runMermaid = (querySelector: string) => {
+export const runMermaid = (querySelector: string): Promise<void> => {
   if (!mermaidInitialized) {
     mermaidInitialized = true
     mermaid.initialize({
@@ -105,11 +185,198 @@ export const runMermaid = (querySelector: string) => {
     })
   }
 
-  mermaid.run({
+  return mermaid.run({
     querySelector
   })
 }
 
+let tikzBundlePromise: Promise<void> | null = null
+let tikzStylesPromise: Promise<void> | null = null
+let domPurifyPromise: Promise<typeof import("dompurify")> | null = null
+
+const ensureTikzBundle = (): Promise<void> => {
+  if (tikzBundlePromise) return tikzBundlePromise
+
+  tikzBundlePromise = new Promise<void>((resolve, reject) => {
+    const existing = document.getElementById("tikzjax-bundle")
+    if (existing) {
+      resolve()
+      return
+    }
+    const script = document.createElement("script")
+    script.id = "tikzjax-bundle"
+    script.src = TIKZ_BUNDLE_URL
+    script.async = true
+    script.crossOrigin = "anonymous"
+    script.addEventListener("load", () => resolve())
+    script.addEventListener("error", () => {
+      tikzBundlePromise = null
+      reject(new Error("Failed to load TikZ engine"))
+    })
+    document.head.appendChild(script)
+  })
+
+  return tikzBundlePromise
+}
+
+const ensureTikzStyles = (): Promise<void> => {
+  if (tikzStylesPromise) return tikzStylesPromise
+
+  tikzStylesPromise = new Promise<void>((resolve, reject) => {
+    const existing = document.getElementById("tikzjax-styles")
+    if (existing) {
+      resolve()
+      return
+    }
+    const link = document.createElement("link")
+    link.id = "tikzjax-styles"
+    link.rel = "stylesheet"
+    link.href = TIKZ_STYLES_URL
+    link.crossOrigin = "anonymous"
+    link.addEventListener("load", () => resolve())
+    link.addEventListener("error", () => {
+      tikzStylesPromise = null
+      reject(new Error("Failed to load TikZ font styles"))
+    })
+    document.head.appendChild(link)
+  })
+
+  return tikzStylesPromise
+}
+
+const ensureDomPurify = (): Promise<typeof import("dompurify")> => {
+  if (!domPurifyPromise) domPurifyPromise = import("dompurify")
+  return domPurifyPromise
+}
+
+const sha256Hex = async (text: string): Promise<string> => {
+  const buf = await crypto.subtle.digest(
+    "SHA-256",
+    new TextEncoder().encode(text)
+  )
+  return Array.from(new Uint8Array(buf))
+    .map((b) => b.toString(16).padStart(2, "0"))
+    .join("")
+}
+
+const sanitizeSvg = async (svg: string): Promise<string> => {
+  const DOMPurify = (await ensureDomPurify()).default
+  return DOMPurify.sanitize(svg, {
+    USE_PROFILES: { svg: true, svgFilters: true }
+  })
+}
+
+const tidyTikzSource = (s: string): string =>
+  s
+    .replaceAll("&nbsp;", "")
+    .split("\n")
+    .map((line) => line.trim())
+    .filter((line) => line)
+    .join("\n")
+
+const renderTikzError = (err: unknown, source: string): string => {
+  const msg = err instanceof Error ? err.message : String(err)
+  return (
+    `<div class="tikz-error"><strong>TikZ error</strong>` +
+    `<pre>${md.utils.escapeHtml(msg)}</pre>` +
+    `<details><summary>source</summary>` +
+    `<pre>${md.utils.escapeHtml(source)}</pre></details></div>`
+  )
+}
+
+const renderOneTikzBlock = (
+  el: HTMLElement,
+  source: string
+): Promise<string> => {
+  return new Promise((resolve, reject) => {
+    let settled = false
+    const timer = window.setTimeout(() => {
+      if (settled) return
+      settled = true
+      el.removeEventListener("tikzjax-load-finished", handler)
+      reject(new Error("TikZ render timed out"))
+    }, TIKZ_RENDER_TIMEOUT_MS)
+
+    const handler = (e: Event) => {
+      if (settled) return
+      settled = true
+      window.clearTimeout(timer)
+      el.removeEventListener("tikzjax-load-finished", handler)
+      const target = e.target as Element | null
+      if (!target) {
+        reject(new Error("TikZ produced no output"))
+        return
+      }
+      resolve(target.outerHTML)
+    }
+
+    el.addEventListener("tikzjax-load-finished", handler)
+
+    while (el.firstChild) el.removeChild(el.firstChild)
+    const script = document.createElement("script")
+    script.type = "text/tikz"
+    script.textContent = source
+    el.appendChild(script)
+  })
+}
+
+export const runTikz = async (querySelector: string): Promise<void> => {
+  const elements = Array.from(
+    document.querySelectorAll<HTMLElement>(querySelector)
+  )
+  if (elements.length === 0) return
+
+  void ensureTikzStyles().catch(() => undefined)
+
+  await Promise.all(
+    elements.map(async (el) => {
+      if (el.dataset.tikzRendered) return
+      el.dataset.tikzRendered = "pending"
+
+      const encoded = el.dataset.tikzSource
+      if (!encoded) {
+        el.dataset.tikzRendered = "error"
+        return
+      }
+
+      const source = tidyTikzSource(decodeBase64ToUTF8(encoded))
+
+      let hash: string
+      try {
+        hash = await sha256Hex(source)
+      } catch (err) {
+        el.innerHTML = renderTikzError(err, source)
+        el.dataset.tikzRendered = "error"
+        return
+      }
+
+      const cacheId = `${DataType.TikzCache}-${hash}`
+      const cached = await data.get<DataType.TikzCache, TikzCache>(cacheId)
+      if (cached?.svg) {
+        el.innerHTML = cached.svg
+        el.dataset.tikzRendered = "true"
+        return
+      }
+
+      try {
+        await ensureTikzBundle()
+        const rawSvg = await renderOneTikzBlock(el, source)
+        const sanitized = await sanitizeSvg(rawSvg)
+        el.innerHTML = sanitized
+        el.dataset.tikzRendered = "true"
+        void data.add<DataType.TikzCache>({
+          _id: cacheId,
+          $type: DataType.TikzCache,
+          svg: sanitized
+        } as TikzCache)
+      } catch (err) {
+        el.innerHTML = renderTikzError(err, source)
+        el.dataset.tikzRendered = "error"
+      }
+    })
+  )
+}
+
 const rules: RenderRuleRecord = {
   table_open: () =>
     '<div class="overflow-x-auto"><table class="table table-zebra">',
@@ -123,11 +390,33 @@ const stripFrontmatter = (content: string): string => {
   return match ? content.slice(match[0].length) : content
 }
 
+const renderMarkdown = (content: string, env?: Record<string, unknown>) => {
+  slugger.reset()
+  return env ? md.render(content, env) : md.render(content)
+}
+
+export const renderCodeFile = async ({
+  rawContent,
+  lang,
+  filename
+}: {
+  rawContent: string
+  lang: string | null
+  filename?: string
+}): Promise<string> => {
+  await useShikiji()
+  const heading = filename ? `# ${filename}\n\n` : ""
+  if (lang !== null) {
+    return renderMarkdown(`${heading}\`\`\`\`${lang}\n${rawContent}\n\`\`\`\``)
+  }
+  return `${renderMarkdown(heading)}<pre><code>${md.utils.escapeHtml(rawContent)}</code></pre>`
+}
+
 export const markdownBuilder = (defaultPrefix?: Ref<string> | string) => {
   const getRawContent = (content: string) => decodeBase64ToUTF8(content)
   const renderFromUTF8 = (content: string, prefix?: string) => {
     return content
-      ? md.render(stripFrontmatter(content), {
+      ? renderMarkdown(stripFrontmatter(content), {
           docId: defaultPrefix ? toValue(defaultPrefix) : (prefix ?? "")
         })
       : ""
@@ -135,7 +424,7 @@ export const markdownBuilder = (defaultPrefix?: Ref<string> | string) => {
 
   return {
     toHTML: (content: string) =>
-      content ? md.render(stripFrontmatter(content)) : "",
+      content ? renderMarkdown(stripFrontmatter(content)) : "",
     render: (content: string, prefix?: string) =>
       renderFromUTF8(decodeBase64ToUTF8(content), prefix),
     renderFromUTF8,

src/hooks/useMarkdownPostRender.hook.ts

@@ -0,0 +1,64 @@
+import { nextTick, type Ref, toValue, watch } from "vue"
+
+import { useImages } from "@/hooks/useImages.hook"
+import {
+  runMermaid,
+  runTikz,
+  useShikiji
+} from "@/hooks/useMarkdown.hook"
+import { attachSvgDownloads } from "@/utils/svgDownload"
+
+interface MarkdownPostRenderOptions {
+  onReady?: () => void
+  tikz?: boolean
+  mermaid?: () => boolean
+  shikiji?: () => boolean
+  images?: () => string | null | undefined
+  triggers?: Ref<unknown>[]
+}
+
+export const useMarkdownPostRender = (
+  contentRef: Ref<unknown>,
+  scopeSelector: () => string,
+  options: MarkdownPostRenderOptions = {}
+) => {
+  const sources = [contentRef, ...(options.triggers ?? [])]
+
+  watch(
+    sources,
+    async () => {
+      if (!toValue(contentRef)) return
+      await nextTick()
+      options.onReady?.()
+
+      const scope = scopeSelector()
+      const wantsTikz = !!options.tikz
+      const wantsMermaid = !!options.mermaid?.()
+
+      const renderJobs: Promise<unknown>[] = []
+      if (wantsTikz) {
+        renderJobs.push(runTikz(`${scope} .tikz`))
+      }
+
+      if (wantsMermaid) {
+        renderJobs.push(runMermaid(`${scope} .mermaid`))
+      }
+
+      if (options.shikiji?.()) {
+        void useShikiji()
+      }
+
+      const imagesSha = options.images?.()
+      if (imagesSha) {
+        useImages(imagesSha)
+      }
+
+      if (wantsTikz || wantsMermaid) {
+        await Promise.allSettled(renderJobs)
+        await nextTick()
+        attachSvgDownloads(document.querySelector(scope))
+      }
+    },
+    { immediate: true }
+  )
+}

src/hooks/useNoteFreshness.hook.spec.ts

@@ -0,0 +1,234 @@
+import { createPinia, setActivePinia } from "pinia"
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+import { ref } from "vue"
+
+const {
+  fetchLatestSha,
+  addFile,
+  getRawContent,
+  saveCacheNote,
+  queryFileContent
+} = vi.hoisted(() => ({
+  fetchLatestSha: vi.fn(),
+  addFile: vi.fn(),
+  getRawContent: vi.fn((s: string) => s),
+  saveCacheNote: vi.fn(),
+  queryFileContent: vi.fn()
+}))
+
+vi.mock("@/hooks/useGitHubContent.hook", () => ({
+  useGitHubContent: () => ({ fetchLatestSha })
+}))
+
+vi.mock("@/hooks/useMarkdown.hook", () => ({
+  markdownBuilder: () => ({ getRawContent, render: (s: string) => s })
+}))
+
+vi.mock("@/modules/note/cache/prepareNoteCache", () => ({
+  prepareNoteCache: () => ({
+    getCachedNote: async () => ({ note: null }),
+    saveCacheNote
+  })
+}))
+
+vi.mock("@/modules/repo/services/repo", () => ({
+  queryFileContent
+}))
+
+vi.mock("@/modules/repo/store/userRepo.store", () => ({
+  useUserRepoStore: () => ({ addFile })
+}))
+
+import { useNoteFreshness } from "./useNoteFreshness.hook"
+
+const setup = (overrides: { sha?: string; path?: string; edited?: string | null } = {}) => {
+  setActivePinia(createPinia())
+  const sha = ref(overrides.sha ?? "local-sha")
+  const path = ref(overrides.path ?? "note.md")
+  const getEditedSha = vi.fn().mockResolvedValue(overrides.edited ?? null)
+  return useNoteFreshness({
+    user: "alice",
+    repo: "notes",
+    sha,
+    path,
+    getEditedSha
+  })
+}
+
+// Make performance.now() return values where elapsed > MIN_SPINNER_MS so the
+// 400ms spinner-min-time wait is skipped.
+const skipSpinnerWait = () => {
+  let call = 0
+  vi.spyOn(performance, "now").mockImplementation(() =>
+    call++ === 0 ? 0 : 10_000
+  )
+}
+
+describe("useNoteFreshness.check", () => {
+  beforeEach(() => {
+    fetchLatestSha.mockReset()
+    addFile.mockReset()
+    saveCacheNote.mockReset()
+    queryFileContent.mockReset()
+    skipSpinnerWait()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("does nothing when path is empty", async () => {
+    const { check, status } = setup({ path: "" })
+
+    await check()
+
+    expect(status.value).toBe("unknown")
+    expect(fetchLatestSha).not.toHaveBeenCalled()
+  })
+
+  it("sets status to 'verified' when remote sha matches local sha", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: "local-sha" })
+
+    const { check, status, latestSha, lastCheckedAt } = setup()
+    await check()
+
+    expect(status.value).toBe("verified")
+    expect(latestSha.value).toBe("local-sha")
+    expect(lastCheckedAt.value).toBeInstanceOf(Date)
+  })
+
+  it("sets status to 'outdated' when remote sha differs from local sha", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: "remote-sha" })
+
+    const { check, status } = setup()
+    await check()
+
+    expect(status.value).toBe("outdated")
+  })
+
+  it("prefers the edited sha over the live sha when comparing", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: "edited-sha" })
+
+    const { check, status } = setup({ sha: "live-sha", edited: "edited-sha" })
+    await check()
+
+    expect(status.value).toBe("verified")
+  })
+
+  it("sets status to 'unauthorized' on auth failure", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "unauthorized" })
+
+    const { check, status } = setup()
+    await check()
+
+    expect(status.value).toBe("unauthorized")
+  })
+
+  it("sets status to 'offline' on network failure", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "offline" })
+
+    const { check, status } = setup()
+    await check()
+
+    expect(status.value).toBe("offline")
+  })
+
+  it("sets status to 'offline' when remote returns sha=null (e.g. directory)", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: null })
+
+    const { check, status } = setup()
+    await check()
+
+    expect(status.value).toBe("offline")
+  })
+})
+
+describe("useNoteFreshness.pullLatest", () => {
+  beforeEach(() => {
+    fetchLatestSha.mockReset()
+    addFile.mockReset()
+    saveCacheNote.mockReset()
+    queryFileContent.mockReset()
+    getRawContent.mockClear()
+    skipSpinnerWait()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns raw=null with no failureStatus when path is empty", async () => {
+    const { pullLatest } = setup({ path: "" })
+
+    expect(await pullLatest()).toEqual({ raw: null, failureStatus: null })
+    expect(fetchLatestSha).not.toHaveBeenCalled()
+  })
+
+  it("returns the fetched content and updates state on success", async () => {
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: "remote-sha" })
+    queryFileContent.mockResolvedValue("BASE64")
+    getRawContent.mockReturnValue("# raw")
+
+    const { pullLatest, status, latestSha, lastCheckedAt } = setup()
+    const result = await pullLatest()
+
+    expect(result).toEqual({ raw: "# raw", failureStatus: null })
+    expect(status.value).toBe("verified")
+    expect(latestSha.value).toBe("remote-sha")
+    expect(lastCheckedAt.value).toBeInstanceOf(Date)
+    expect(addFile).toHaveBeenCalledWith({ path: "note.md", sha: "remote-sha" })
+    expect(saveCacheNote).toHaveBeenCalled()
+  })
+
+  it("surfaces 'unauthorized' failureStatus when remote resolve is unauthorized", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    fetchLatestSha.mockResolvedValue({ kind: "unauthorized" })
+
+    const { pullLatest, status } = setup()
+    expect(await pullLatest()).toEqual({
+      raw: null,
+      failureStatus: "unauthorized"
+    })
+    expect(status.value).toBe("unauthorized")
+  })
+
+  it("surfaces 'offline' failureStatus when remote resolve is offline", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    fetchLatestSha.mockResolvedValue({ kind: "offline" })
+
+    const { pullLatest, status } = setup()
+    expect(await pullLatest()).toEqual({
+      raw: null,
+      failureStatus: "offline"
+    })
+    expect(status.value).toBe("offline")
+  })
+
+  it("surfaces 'offline' failureStatus when blob content fetch fails", async () => {
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+    fetchLatestSha.mockResolvedValue({ kind: "ok", sha: "remote-sha" })
+    queryFileContent.mockResolvedValue(null)
+
+    const { pullLatest, status } = setup()
+    expect(await pullLatest()).toEqual({
+      raw: null,
+      failureStatus: "offline"
+    })
+    expect(status.value).toBe("offline")
+  })
+
+  it("uses the cached latestSha to skip a redundant fetchLatestSha call", async () => {
+    fetchLatestSha.mockResolvedValueOnce({ kind: "ok", sha: "cached-sha" })
+    queryFileContent.mockResolvedValue("BASE64")
+
+    const api = setup()
+    await api.check() // populates latestSha
+    expect(fetchLatestSha).toHaveBeenCalledTimes(1)
+
+    fetchLatestSha.mockClear()
+    await api.pullLatest()
+
+    expect(fetchLatestSha).not.toHaveBeenCalled()
+    expect(queryFileContent).toHaveBeenCalledWith("alice", "notes", "cached-sha")
+  })
+})

src/hooks/useNoteFreshness.hook.ts

@@ -0,0 +1,124 @@
+import { Ref, ref } from "vue"
+
+import { useGitHubContent } from "@/hooks/useGitHubContent.hook"
+import { markdownBuilder } from "@/hooks/useMarkdown.hook"
+import { prepareNoteCache } from "@/modules/note/cache/prepareNoteCache"
+import { queryFileContent } from "@/modules/repo/services/repo"
+import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
+
+export type FreshnessStatus =
+  | "unknown"
+  | "checking"
+  | "verified"
+  | "outdated"
+  | "offline"
+  | "unauthorized"
+
+const MIN_SPINNER_MS = 400
+
+export const useNoteFreshness = ({
+  user,
+  repo,
+  sha,
+  path,
+  getEditedSha
+}: {
+  user: string
+  repo: string
+  sha: Ref<string>
+  path: Ref<string | undefined>
+  getEditedSha: () => Promise<string | null>
+}) => {
+  const store = useUserRepoStore()
+  const { fetchLatestSha } = useGitHubContent({ user, repo })
+
+  const status = ref<FreshnessStatus>("unknown")
+  const lastCheckedAt = ref<Date | null>(null)
+  const latestSha = ref<string | null>(null)
+
+  const expectedSha = async () => (await getEditedSha()) ?? sha.value
+
+  const check = async () => {
+    if (!path.value) return
+    status.value = "checking"
+    const startedAt = performance.now()
+
+    let next: FreshnessStatus
+    const result = await fetchLatestSha(path.value)
+    if (result.kind === "unauthorized") {
+      next = "unauthorized"
+    } else if (result.kind === "offline" || result.sha === null) {
+      next = "offline"
+    } else {
+      latestSha.value = result.sha
+      lastCheckedAt.value = new Date()
+      const local = await expectedSha()
+      next = result.sha === local ? "verified" : "outdated"
+    }
+
+    const elapsed = performance.now() - startedAt
+    if (elapsed < MIN_SPINNER_MS) {
+      await new Promise((r) => setTimeout(r, MIN_SPINNER_MS - elapsed))
+    }
+    status.value = next
+  }
+
+  const resolveRemoteSha = async (
+    path: string
+  ): Promise<{ sha: string | null; failureStatus: FreshnessStatus | null }> => {
+    if (latestSha.value) return { sha: latestSha.value, failureStatus: null }
+    const result = await fetchLatestSha(path)
+    if (result.kind === "unauthorized") {
+      return { sha: null, failureStatus: "unauthorized" }
+    }
+    if (result.kind === "offline" || result.sha === null) {
+      return { sha: null, failureStatus: "offline" }
+    }
+    return { sha: result.sha, failureStatus: null }
+  }
+
+  const pullLatest = async (): Promise<{
+    raw: string | null
+    failureStatus: FreshnessStatus | null
+  }> => {
+    if (!path.value) return { raw: null, failureStatus: null }
+    const usedCachedSha = latestSha.value !== null
+    const { sha: remoteSha, failureStatus } = await resolveRemoteSha(path.value)
+    if (!remoteSha) {
+      console.warn("pullLatest: could not resolve remote sha", { path: path.value })
+      if (failureStatus) status.value = failureStatus
+      return { raw: null, failureStatus }
+    }
+    const fileContent = await queryFileContent(user, repo, remoteSha)
+    if (!fileContent) {
+      console.warn("pullLatest: failed to fetch blob content", {
+        path: path.value,
+        remoteSha,
+        usedCachedSha
+      })
+      // Cached SHA may be stale — clear so the next click re-resolves it.
+      if (usedCachedSha) latestSha.value = null
+      status.value = "offline"
+      return { raw: null, failureStatus: "offline" }
+    }
+    const { saveCacheNote } = prepareNoteCache(sha.value, path.value)
+    await saveCacheNote(fileContent, {
+      editedSha: remoteSha,
+      path: path.value
+    })
+    store.addFile({ path: path.value, sha: remoteSha })
+    latestSha.value = remoteSha
+    lastCheckedAt.value = new Date()
+    status.value = "verified"
+    const { getRawContent } = markdownBuilder(sha.value)
+    return { raw: getRawContent(fileContent), failureStatus: null }
+  }
+
+  return {
+    status,
+    lastCheckedAt,
+    latestSha,
+    check,
+    pullLatest
+  }
+}

src/hooks/useNoteView.hook.ts

@@ -25,7 +25,7 @@ export const useNoteView = () => {
   )
 
   const unsubscribeLink = noteEventBus.addEventBusListener(
-    ({ path, currentNoteSHA }) => {
+    ({ path, hash, currentNoteSHA }) => {
       const currentFile = store.files.find(
         (file) => file.sha === currentNoteSHA
       )
@@ -38,7 +38,7 @@ export const useNoteView = () => {
         return
       }
 
-      addStackedNote(currentNoteSHA ?? "", file.sha)
+      addStackedNote(currentNoteSHA ?? "", file.sha, undefined, hash)
     }
   )
 

src/hooks/useOfflineNotes.hook.ts

@@ -1,18 +1,65 @@
 import { useAsyncState } from "@vueuse/core"
 import { computed, ref } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
-import { prepareNoteCache } from "@/modules/note/cache/prepareNoteCache"
+import { buildNoteDocs } from "@/modules/note/cache/prepareNoteCache"
 import { Note } from "@/modules/note/models/Note"
-import { queryFileContent } from "@/modules/repo/services/repo"
+import { getMainReadme, queryFileContent } from "@/modules/repo/services/repo"
 import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
 
+const CONCURRENCY = 8
+const BULK_FLUSH_SIZE = 50
+
+export type CacheFailureKind =
+  | "fetch"
+  | "build"
+  | "save"
+  | "readme"
+  | "unknown"
+
+export type CacheFailure = {
+  kind: CacheFailureKind
+  path?: string
+  sha?: string
+  message?: string
+  docIds?: string[]
+}
+
+const describeError = (error: unknown): string => {
+  if (error instanceof Error) return error.message
+  return String(error)
+}
+
+const runWithConcurrency = async <T>(
+  items: T[],
+  limit: number,
+  worker: (item: T) => Promise<void>
+) => {
+  let cursor = 0
+  const next = async (): Promise<void> => {
+    const i = cursor++
+    if (i >= items.length) return
+    await worker(items[i])
+    return next()
+  }
+  await Promise.all(
+    Array.from({ length: Math.min(limit, items.length) }, next)
+  )
+}
+
 export const useOfflineNotes = () => {
   const store = useUserRepoStore()
   const totalOfNotes = computed(() => store.files.length)
 
   const noteCompleted = ref(0)
+  const failures = ref<CacheFailure[]>([])
+  const failedNotes = computed(() => failures.value.length)
+
+  const recordFailure = (failure: CacheFailure) => {
+    failures.value.push(failure)
+    console.warn("[offline-cache] failure", failure)
+  }
 
   const cacheAllNotes = async () => {
     const isInitialized = store.user && store.repo && totalOfNotes.value > 0
@@ -29,32 +76,84 @@ export const useOfflineNotes = () => {
 
     const cachedNotesSet = new Set(cachedNotesFromSha.map((note) => note._id))
 
-    noteCompleted.value = 0
+    const filesToFetch = store.files.filter(
+      (file) =>
+        file.sha && !cachedNotesSet.has(generateId(DataType.Note, file.sha))
+    )
 
-    for (const file of store.files) {
+    noteCompleted.value = store.files.length - filesToFetch.length
-      noteCompleted.value++
+    failures.value = []
 
-      if (
+    const pendingDocs: Note[] = []
-        !file.sha ||
+    const flush = async () => {
-        cachedNotesSet.has(data.generateId(DataType.Note, file.sha))
+      if (!pendingDocs.length) return
-      ) {
+      const batch = pendingDocs.splice(0, pendingDocs.length)
-        continue
+      try {
+        await data.bulkUpdate(batch)
+      } catch (error) {
+        recordFailure({
+          kind: "save",
+          message: describeError(error),
+          docIds: batch
+            .map((doc) => doc._id)
+            .filter((id): id is string => Boolean(id))
+        })
       }
-
-      const { saveCacheNote } = prepareNoteCache(file.sha, file.path)
-
-      const contentFile = await queryFileContent(
-        store.user,
-        store.repo,
-        file.sha
-      )
-
-      if (!contentFile) {
-        return null
-      }
-
-      saveCacheNote(contentFile)
     }
+
+    const fetchWork = runWithConcurrency(
+      filesToFetch,
+      CONCURRENCY,
+      async (file) => {
+        try {
+          const content = await queryFileContent(
+            store.user,
+            store.repo,
+            file.sha!
+          )
+          if (content === null) {
+            recordFailure({
+              kind: "fetch",
+              path: file.path,
+              sha: file.sha!
+            })
+            return
+          }
+          let docs: Note[]
+          try {
+            docs = buildNoteDocs(file.sha!, file.path, content)
+          } catch (error) {
+            recordFailure({
+              kind: "build",
+              path: file.path,
+              sha: file.sha!,
+              message: describeError(error)
+            })
+            return
+          }
+          pendingDocs.push(...docs)
+          if (pendingDocs.length >= BULK_FLUSH_SIZE) {
+            await flush()
+          }
+        } catch (error) {
+          recordFailure({
+            kind: "unknown",
+            path: file.path,
+            sha: file.sha,
+            message: describeError(error)
+          })
+        } finally {
+          noteCompleted.value++
+        }
+      }
+    )
+
+    const readmeWork = getMainReadme(store.user, store.repo).catch((error) => {
+      recordFailure({ kind: "readme", message: describeError(error) })
+    })
+
+    await Promise.all([fetchWork, readmeWork])
+    await flush()
   }
   const { execute, isLoading } = useAsyncState(cacheAllNotes, null, {
     immediate: false
@@ -64,6 +163,8 @@ export const useOfflineNotes = () => {
     cacheAllNotes: execute,
     isLoading,
     totalOfNotes,
-    noteCompleted
+    noteCompleted,
+    failedNotes,
+    failures
   }
 }

src/hooks/useOverlay.hook.ts

@@ -10,31 +10,28 @@ export const useOverlay = (listen = true) => {
   const isMobile = computed(() => width.value <= MOBILE_BREAKPOINT)
 
   if (listen) {
-    // In Firefox/Chrome, body is the horizontal scroll container (body has
-    // computed overflow-x: auto from overflow-y: hidden). In Safari, the
-    // viewport (documentElement) is used instead. Listen on both.
     const updateScroll = () => {
-      x.value = document.body.scrollLeft || window.scrollX
+      const mainApp = document.getElementById("main-app")
-      y.value = document.body.scrollTop || window.scrollY
+      x.value = mainApp?.scrollLeft ?? 0
+      y.value = mainApp?.scrollTop ?? 0
     }
-    useEventListener(window, "scroll", updateScroll, {
+    useEventListener(
-      passive: true,
+      () => document.getElementById("main-app"),
-      capture: false
+      "scroll",
-    })
+      updateScroll,
-    useEventListener(document.body, "scroll", updateScroll, {
+      { passive: true }
-      passive: true,
+    )
-      capture: false
-    })
   }
 
   const scrollToNote = (to: number) => {
     const go = () => {
+      const mainApp = document.getElementById("main-app")
+      if (!mainApp) return
+
       if (isMobile.value) {
-        document.body.scrollTop = to
+        mainApp.scrollTo({ top: to, behavior: "smooth" })
-        document.documentElement.scrollTop = to
       } else {
-        document.body.scrollLeft = to
+        mainApp.scrollTo({ left: to, behavior: "smooth" })
-        document.documentElement.scrollLeft = to
       }
     }
 
@@ -43,10 +40,22 @@ export const useOverlay = (listen = true) => {
     }, 80)
   }
 
+  const scrollToElement = (element: HTMLElement, anchorTop?: number) => {
+    const mainApp = document.getElementById("main-app")
+    if (mainApp && anchorTop !== undefined) {
+      mainApp.scrollTop = anchorTop
+    }
+
+    requestAnimationFrame(() => {
+      element.scrollIntoView({ behavior: "smooth", block: "start" })
+    })
+  }
+
   return {
     x,
     y,
     isMobile,
-    scrollToNote
+    scrollToNote,
+    scrollToElement
   }
 }

src/hooks/useRepos.hook.ts

@@ -1,34 +1,94 @@
-import { useAsyncState } from "@vueuse/core"
+import { computed, ref, watch } from "vue"
 
 import { useGitHubLogin } from "@/hooks/useGitHubLogin.hook"
 import { RepoBase } from "@/modules/repo/interfaces/RepoBase"
 import { getOctokit } from "@/modules/repo/services/octo"
 
-export const useRepos = () => {
+const PER_PAGE = 30
-  const { username, accessToken } = useGitHubLogin()
+const STALE_TIME_MS = 20 * 60 * 1000
-  const repos = useAsyncState<RepoBase[]>(async () => {
-    if (!accessToken.value || !username.value) {
-      return []
-    }
 
+const repos = ref<RepoBase[]>([])
+const isReady = ref(false)
+const isLoading = ref(false)
+const hasCredentialError = ref(false)
+const currentPage = ref(0)
+const hasMore = ref(true)
+let lastFetchedAt = 0
+
+const { username, accessToken } = useGitHubLogin()
+
+const resetState = () => {
+  repos.value = []
+  currentPage.value = 0
+  hasMore.value = true
+  isReady.value = false
+  isLoading.value = false
+  hasCredentialError.value = false
+  lastFetchedAt = 0
+}
+
+const loadMore = async () => {
+  if (!accessToken.value || !username.value) {
+    isReady.value = true
+    return
+  }
+  if (isLoading.value || !hasMore.value) return
+  isLoading.value = true
+  try {
     const octokit = await getOctokit()
-
+    const nextPage = currentPage.value + 1
-    const repoList = await octokit.request("GET /search/repositories", {
+    const repoList = await octokit.request("GET /user/repos", {
-      q: `user:${username.value}`,
+      sort: "full_name",
-      per_page: 100
+      direction: "asc",
+      affiliation: "owner",
+      per_page: PER_PAGE,
+      page: nextPage
     })
-
+    currentPage.value = nextPage
-    return repoList.data.items
+    hasMore.value = repoList.data.length === PER_PAGE
-      .map((item) => ({
+    const newItems = repoList.data.map((item) => ({
-        id: `${item.id}`,
+      id: `${item.id}`,
-        name: item.name,
+      name: item.name,
-        isPrivate: item.private
+      isPrivate: item.private ?? false
-      }))
+    }))
-      .sort((a, b) => (a.name < b.name ? -1 : 1))
+    repos.value = [...repos.value, ...newItems]
-  }, [])
+  } catch (err: unknown) {
-
+    if (
-  return {
+      typeof err === "object" &&
-    repos: repos.state,
+      err !== null &&
-    isReady: repos.isReady
+      "status" in err &&
+      (err as { status: number }).status === 401
+    ) {
+      hasCredentialError.value = true
+    } else {
+      throw err
+    }
+  } finally {
+    isReady.value = true
+    isLoading.value = false
   }
 }
+
+watch(accessToken, (next, prev) => {
+  if (next === prev) return
+  resetState()
+  if (next && username.value) {
+    lastFetchedAt = Date.now()
+    loadMore()
+  }
+})
+
+export const useRepos = () => {
+  const canLoadMore = computed(() => !isLoading.value && hasMore.value)
+
+  const isStale = Date.now() - lastFetchedAt > STALE_TIME_MS
+  if (!isReady.value || isStale) {
+    if (isStale && isReady.value) {
+      resetState()
+    }
+    lastFetchedAt = Date.now()
+    loadMore()
+  }
+
+  return { repos, isReady, hasCredentialError, canLoadMore, loadMore }
+}

src/hooks/useResizeContainer.hook.ts

@@ -1,4 +1,4 @@
-import { onMounted, type Ref, watch } from "vue"
+import { onMounted, onUnmounted, type Ref, watch } from "vue"
 
 import { getNoteWidth } from "@/constants/note-width"
 import { useOverlay } from "@/hooks/useOverlay.hook"
@@ -19,9 +19,9 @@ export const useResizeContainer = (
     }
 
     if (isMobile.value) {
-      container.style.height = `${(stackedNotes.value.length + 1) * 100}vh`
+      container.style.height = `${(stackedNotes.value.length + 1) * 100}svh`
     } else {
-      container.style.width = `${
+      container.style.minWidth = `${
         getNoteWidth() * (stackedNotes.value.length + 1)
       }px`
     }
@@ -29,6 +29,11 @@ export const useResizeContainer = (
 
   onMounted(() => {
     resizeContainer()
+    window.addEventListener("resize", resizeContainer)
+  })
+
+  onUnmounted(() => {
+    window.removeEventListener("resize", resizeContainer)
   })
 
   watch(stackedNotes, resizeContainer, {

src/hooks/useRouteQueryStackedNotes.hook.ts

@@ -18,24 +18,81 @@ export const useRouteQueryStackedNotes = () => {
   })
   const { height } = useWindowSize()
 
-  const { scrollToNote, isMobile } = useOverlay(false)
+  const { scrollToNote, scrollToElement, isMobile } = useOverlay(false)
 
-  const scrollToFocusedNote = (
+  const scrollToHashInNote = (
-    noteId: string | null = null,
+    cleanSha: string,
-    notes: string[] = stackedNotes.value
+    hash: string,
+    smooth: boolean,
+    attempts = 30
   ) => {
+    if (attempts <= 0) {
+      return
+    }
+
+    const heading = document.querySelector(
+      `.note-${cleanSha} #${CSS.escape(hash)}`
+    )
+    if (heading) {
+      heading.scrollIntoView({
+        block: "start",
+        inline: "nearest",
+        behavior: smooth ? "smooth" : "auto"
+      })
+      return
+    }
+
+    requestAnimationFrame(() => {
+      scrollToHashInNote(cleanSha, hash, smooth, attempts - 1)
+    })
+  }
+
+  const scrollToNoteElement = (
+    cleanNoteId: string,
+    index: number,
+    anchorTop?: number,
+    attempts = 30
+  ) => {
+    const element = document.querySelector(
+      `.note-${cleanNoteId}`
+    ) as HTMLElement | null
+
+    if (element) {
+      scrollToElement(element, anchorTop)
+      return
+    }
+
+    if (attempts <= 0) {
+      scrollToNote((index + 1) * height.value)
+      return
+    }
+
+    requestAnimationFrame(() => {
+      scrollToNoteElement(cleanNoteId, index, anchorTop, attempts - 1)
+    })
+  }
+
+  type ScrollToFocusedNoteOptions = {
+    noteId?: string | null
+    notes?: string[]
+    hash?: string
+    smoothHash?: boolean
+    anchorTop?: number
+  }
+
+  const scrollToFocusedNote = ({
+    noteId = null,
+    notes = stackedNotes.value,
+    hash,
+    smoothHash = false,
+    anchorTop
+  }: ScrollToFocusedNoteOptions = {}) => {
     nextTick(() => {
       const index = noteId ? notes.findIndex((nid) => nid === noteId) : 0
 
       if (isMobile.value) {
         if (noteId) {
-          const cleanNoteId = noteId.replaceAll(":", "-")
+          scrollToNoteElement(noteId.replaceAll(":", "-"), index, anchorTop)
-          const element = document.querySelector(
-            `.note-${cleanNoteId}`
-          ) as HTMLElement
-
-          const top = (index + 1) * (element?.clientHeight ?? height.value)
-          scrollToNote(top)
         } else {
           scrollToNote(0)
         }
@@ -47,16 +104,29 @@ export const useRouteQueryStackedNotes = () => {
           scrollToNote(0)
         }
       }
+
+      if (hash && noteId) {
+        scrollToHashInNote(noteId.replaceAll(":", "-"), hash, smoothHash)
+      }
     })
   }
 
   const addStackedNote = (
     currentSha: string,
     sha: string,
-    selector?: string
+    selector?: string,
+    hash?: string
   ) => {
+    const anchorTop =
+      document.getElementById("main-app")?.scrollTop ?? undefined
+
     if (stackedNotes.value.includes(sha)) {
-      scrollToFocusedNote(selector ?? sha)
+      scrollToFocusedNote({
+        noteId: selector ?? sha,
+        hash,
+        smoothHash: true,
+        anchorTop
+      })
       return
     }
 
@@ -76,7 +146,7 @@ export const useRouteQueryStackedNotes = () => {
       stackedNotes.value = newStackedNotes
     }
 
-    scrollToFocusedNote(selector ?? sha, stackedNotes.value)
+    scrollToFocusedNote({ noteId: selector ?? sha, hash, anchorTop })
   }
 
   return {

src/modules/atproto/getUrl.spec.ts

@@ -0,0 +1,53 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+vi.mock("@/modules/atproto/getAuthor", () => ({
+  getAuthor: vi.fn()
+}))
+
+import { getAuthor } from "@/modules/atproto/getAuthor"
+
+import { getUrl } from "./getUrl"
+
+describe("getUrl", () => {
+  beforeEach(() => {
+    vi.mocked(getAuthor).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns null when the author cannot be resolved", async () => {
+    vi.mocked(getAuthor).mockResolvedValue(null)
+    expect(
+      await getUrl({ did: "did:plc:abc", rkey: "r1" })
+    ).toBeNull()
+  })
+
+  it("builds a getRecord URL with the right query params on the author's PDS", async () => {
+    vi.mocked(getAuthor).mockResolvedValue({
+      handle: "alice.bsky.social",
+      pds: "https://pds.example.com"
+    })
+
+    const url = await getUrl({ did: "did:plc:abc", rkey: "rkey1" })
+    const parsed = new URL(url as string)
+
+    expect(parsed.origin).toBe("https://pds.example.com")
+    expect(parsed.pathname).toBe("/xrpc/com.atproto.repo.getRecord")
+    expect(parsed.searchParams.get("repo")).toBe("did:plc:abc")
+    expect(parsed.searchParams.get("collection")).toBe("space.remanso.note")
+    expect(parsed.searchParams.get("rkey")).toBe("rkey1")
+  })
+
+  it("passes the did to getAuthor", async () => {
+    vi.mocked(getAuthor).mockResolvedValue({
+      handle: "h",
+      pds: "https://pds.example.com"
+    })
+
+    await getUrl({ did: "did:web:example.com", rkey: "r2" })
+
+    expect(getAuthor).toHaveBeenCalledWith("did:web:example.com")
+  })
+})

src/modules/atproto/parseAtUri.spec.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from "vitest"
+
+import { parseAtUri } from "./parseAtUri"
+
+describe("parseAtUri", () => {
+  it("parses a did:plc AT URI", () => {
+    expect(
+      parseAtUri("at://did:plc:abc123/app.bsky.feed.post/rkey-xyz")
+    ).toEqual({
+      did: "did:plc:abc123",
+      rkey: "rkey-xyz"
+    })
+  })
+
+  it("parses a did:web AT URI", () => {
+    expect(
+      parseAtUri("at://did:web:example.com/space.remanso.note/note-1")
+    ).toEqual({
+      did: "did:web:example.com",
+      rkey: "note-1"
+    })
+  })
+
+  it("treats rkeys with slashes as a single trailing segment", () => {
+    expect(
+      parseAtUri("at://did:plc:abc/space.remanso.note/multi/segment")
+    ).toEqual({
+      did: "did:plc:abc",
+      rkey: "multi/segment"
+    })
+  })
+
+  it("throws when the URI does not start with at://", () => {
+    expect(() =>
+      parseAtUri("https://did:plc:abc/collection/rkey")
+    ).toThrow(/Invalid AT URI/)
+  })
+
+  it("throws when the DID prefix is missing", () => {
+    expect(() => parseAtUri("at://abc/collection/rkey")).toThrow(
+      /Invalid AT URI/
+    )
+  })
+
+  it("throws when the collection or rkey is missing", () => {
+    expect(() => parseAtUri("at://did:plc:abc/onlycollection")).toThrow(
+      /Invalid AT URI/
+    )
+  })
+
+  it("throws on empty input", () => {
+    expect(() => parseAtUri("")).toThrow(/Invalid AT URI/)
+  })
+})

src/modules/atproto/shortDid.spec.ts

@@ -0,0 +1,41 @@
+import { describe, expect, it } from "vitest"
+
+import { fromShortDid, toShortDid } from "./shortDid"
+
+describe("toShortDid", () => {
+  it("strips did:plc: prefix", () => {
+    expect(toShortDid("did:plc:abc123")).toBe("abc123")
+  })
+
+  it("strips did: prefix but keeps the method when non-plc", () => {
+    expect(toShortDid("did:web:example.com")).toBe("web:example.com")
+  })
+
+  it("returns input unchanged when there is no did: prefix", () => {
+    expect(toShortDid("abc123")).toBe("abc123")
+  })
+})
+
+describe("fromShortDid", () => {
+  it("adds did:plc: prefix to bare identifiers", () => {
+    expect(fromShortDid("abc123")).toBe("did:plc:abc123")
+  })
+
+  it("adds did: prefix when method is already present", () => {
+    expect(fromShortDid("web:example.com")).toBe("did:web:example.com")
+  })
+
+  it("passes through fully-qualified DIDs unchanged", () => {
+    expect(fromShortDid("did:plc:abc123")).toBe("did:plc:abc123")
+    expect(fromShortDid("did:web:example.com")).toBe("did:web:example.com")
+  })
+})
+
+describe("round-trip toShortDid → fromShortDid", () => {
+  it.each(["did:plc:abc123", "did:web:example.com", "did:key:zXyZ"])(
+    "is identity for %s",
+    (did) => {
+      expect(fromShortDid(toShortDid(did))).toBe(did)
+    }
+  )
+})

src/modules/atproto/withATProtoImages.spec.ts

@@ -0,0 +1,55 @@
+import { describe, expect, it } from "vitest"
+
+import { withATProtoImages } from "./withATProtoImages"
+
+const PDS = "https://pds.example.com"
+const DID = "did:plc:abc123"
+
+describe("withATProtoImages", () => {
+  it("rewrites a bafkrei CID image to a getBlob URL", () => {
+    const out = withATProtoImages(
+      "![cover](bafkreigh2akiscaildc7r4apx2t6q4t6n6kxjpw3xhqxkfvvbprdaezz4i)",
+      { pds: PDS, did: DID }
+    )
+
+    expect(out).toContain(
+      `${PDS}/xrpc/com.atproto.sync.getBlob`
+    )
+    expect(out).toContain("did=did%3Aplc%3Aabc123")
+    expect(out).toContain(
+      "cid=bafkreigh2akiscaildc7r4apx2t6q4t6n6kxjpw3xhqxkfvvbprdaezz4i"
+    )
+  })
+
+  it("preserves the alt text", () => {
+    const out = withATProtoImages("![my cover](bafkreiabc)", {
+      pds: PDS,
+      did: DID
+    })
+    expect(out).toMatch(/!\[my cover\]/)
+  })
+
+  it("rewrites multiple images in one pass", () => {
+    const md = "![a](bafkreiaaa) and ![b](bafkreibbb)"
+    const out = withATProtoImages(md, { pds: PDS, did: DID })
+
+    expect(out.match(/com\.atproto\.sync\.getBlob/g)).toHaveLength(2)
+    expect(out).toContain("cid=bafkreiaaa")
+    expect(out).toContain("cid=bafkreibbb")
+  })
+
+  it("leaves regular image URLs untouched", () => {
+    const md = "![pic](https://example.com/a.png)"
+    expect(withATProtoImages(md, { pds: PDS, did: DID })).toBe(md)
+  })
+
+  it("leaves CIDs that don't match the bafkrei prefix untouched", () => {
+    const md = "![x](sha256-abc123)"
+    expect(withATProtoImages(md, { pds: PDS, did: DID })).toBe(md)
+  })
+
+  it("preserves an empty alt text", () => {
+    const out = withATProtoImages("![](bafkreiabc)", { pds: PDS, did: DID })
+    expect(out).toMatch(/^!\[\]/)
+  })
+})

src/modules/card/hooks/useSpacedRepetitionCards.ts

@@ -4,7 +4,7 @@ import { useAsyncState } from "@vueuse/core"
 import { addDays, isAfter } from "date-fns"
 import { computed, nextTick, watch } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { useFile } from "@/hooks/useFile.hook"
 import { useLinks } from "@/hooks/useLinks.hook"
@@ -51,7 +51,7 @@ export const useSpacedRepetitionCards = () => {
         const repetition = await data.getOrCreate<
           DataType.RepetitionCard,
           RepetitionCard
-        >(data.generateId(DataType.RepetitionCard, cardFile.path), {
+        >(generateId(DataType.RepetitionCard, cardFile.path), {
           $type: DataType.RepetitionCard,
           level: 1,
           repeatDate: new Date(),

src/modules/history/hooks/useLastVisitedRepos.hook.ts

@@ -1,17 +1,17 @@
 import { useAsyncState } from "@vueuse/core"
 import { computed } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { History } from "@/data/models/History"
 
-const HISTORY_ID = data.generateId(DataType.History, "history")
+const HISTORY_ID = generateId(DataType.History, "history")
 
 export const useLastVisitedRepos = () => {
   const history = useAsyncState(
     () =>
       data.get<DataType.History, History>(
-        data.generateId(DataType.History, "history")
+        generateId(DataType.History, "history")
       ),
     null
   )

src/modules/history/hooks/useVisitRepo.hook.ts

@@ -1,10 +1,10 @@
 import { Ref, toValue } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { History } from "@/data/models/History"
 
-const HISTORY_ID = data.generateId(DataType.History, "history")
+const HISTORY_ID = generateId(DataType.History, "history")
 const MAX_REPO_HISTORY = 10
 
 export const useVisitRepo = (newRepo: {

src/modules/note/cache/prepareNoteCache.ts

@@ -1,4 +1,4 @@
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { Note } from "@/modules/note/models/Note"
 import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
@@ -11,11 +11,28 @@ type NoteCacheResult =
   | { note: Note; from: "path" }
   | { note: null; from: null }
 
+export const buildNoteDocs = (
+  sha: string,
+  path: string | undefined,
+  content: string,
+  editedSha?: string
+): Note[] => {
+  const base: Note = {
+    _id: generateId(DataType.Note, sha),
+    $type: DataType.Note,
+    content,
+    editedSha
+  }
+  return path
+    ? [base, { ...base, _id: generateId(DataType.Note, path) }]
+    : [base]
+}
+
 export const prepareNoteCache = (sha: string, path?: string) => {
   const store = useUserRepoStore()
 
-  const noteId = data.generateId(DataType.Note, sha)
+  const noteId = generateId(DataType.Note, sha)
-  const notePath = path ? data.generateId(DataType.Note, path) : null
+  const notePath = path ? generateId(DataType.Note, path) : null
   const getCachedNote = async (): Promise<NoteCacheResult> => {
     const note = await data.get<DataType.Note, Note>(noteId)
 

src/modules/note/components/CacheAllNote.vue

@@ -1,14 +1,27 @@
 <script setup lang="ts">
 import { useOfflineNotes } from "@/hooks/useOfflineNotes.hook"
-import { confirmMessage } from "@/utils/notif"
+import { confirmMessage, errorMessage } from "@/utils/notif"
 
-const { cacheAllNotes, isLoading, totalOfNotes, noteCompleted } =
+const {
-  useOfflineNotes()
+  cacheAllNotes,
+  isLoading,
+  totalOfNotes,
+  noteCompleted,
+  failedNotes,
+  failures
+} = useOfflineNotes()
 
 const confirmBeforeCachingAllNotes = async () => {
   confirm("Do you want to cache all notes?")
   await cacheAllNotes()
-  confirmMessage("✅ All notes have been locally saved")
+  if (failedNotes.value > 0) {
+    console.table(failures.value)
+    errorMessage(
+      `${failedNotes.value} of ${totalOfNotes.value} note(s) could not be cached — try again`
+    )
+  } else {
+    confirmMessage("✅ All notes have been locally saved")
+  }
 }
 </script>
 

src/modules/post/data/client.ts

@@ -29,31 +29,19 @@ export const noteRouter = contract.router({
   noteLists: {
     method: "GET",
     path: "/notes",
-    query: type({
+    query: contract.type<{ cursor?: string; limit?: number }>(),
-      cursor: "string | undefined",
-      limit: "number | undefined"
-    }),
     responses: {
-      200: type({
+      200: contract.type<{ notes: PublicNoteListItem[] }>()
-        notes: PublicNoteListItem.array()
-      })
     },
     summary: "List all notes"
   },
   noteListsByDid: {
     method: "GET",
     path: "/:did/notes",
-    pathParams: type({
+    pathParams: contract.type<{ did: string }>(),
-      did: "string"
+    query: contract.type<{ cursor?: string; limit?: number }>(),
-    }),
-    query: type({
-      cursor: "string | undefined",
-      limit: "number | undefined"
-    }),
     responses: {
-      200: type({
+      200: contract.type<{ notes: PublicNoteListItem[] }>()
-        notes: PublicNoteListItem.array()
-      })
     },
     summary: "List all notes"
   }

src/modules/repo/hooks/useFavoriteRepos.hook.ts

@@ -1,25 +1,28 @@
 import { computed, onMounted, ref } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
-import { useRepos } from "@/hooks/useRepos.hook"
 import { RepoBase } from "@/modules/repo/interfaces/RepoBase"
 import { FavoriteRepo } from "@/modules/repo/models/FavoriteRepo"
 
 export const useFavoriteRepos = () => {
-  const { repos } = useRepos()
   const savedRepos = ref<FavoriteRepo[]>([])
 
   const getFavorites = async () => {
     savedRepos.value = await data.getAll<DataType.FavoriteRepo, FavoriteRepo>({
-      prefix: DataType.FavoriteRepo,
+      prefix: DataType.FavoriteRepo
-      keys: repos.value.map((repo) => repo.id)
     })
   }
 
-  const savedFavoriteRepos = computed(() =>
+  const savedFavoriteRepos = computed(() => {
-    savedRepos.value.filter((repo) => repo.isFavorite)
+    const seen = new Map<string, FavoriteRepo>()
-  )
+    for (const repo of savedRepos.value) {
+      if (repo.isFavorite && !seen.has(repo.name)) {
+        seen.set(repo.name, repo)
+      }
+    }
+    return [...seen.values()]
+  })
 
   onMounted(() => {
     getFavorites()
@@ -27,7 +30,7 @@ export const useFavoriteRepos = () => {
 
   const toggleFavorite = async (repo: RepoBase, isFavorite: boolean) => {
     const favorite: FavoriteRepo = {
-      _id: data.generateId(DataType.FavoriteRepo, repo.id),
+      _id: generateId(DataType.FavoriteRepo, repo.id),
       $type: DataType.FavoriteRepo,
       isFavorite,
       name: repo.name,

src/modules/repo/hooks/useRepoList.hook.ts

@@ -1,31 +1,38 @@
 import { computed } from "vue"
 
+import { DataType } from "@/data/DataType.enum"
 import { useRepos } from "@/hooks/useRepos.hook"
 import { useFavoriteRepos } from "@/modules/repo/hooks/useFavoriteRepos.hook"
 import { RepoBase } from "@/modules/repo/interfaces/RepoBase"
 
+const FAVORITE_ID_PREFIX = `${DataType.FavoriteRepo}-`
+
 export const useRepoList = () => {
   const { savedFavoriteRepos, addFavorite, removeFavorite } = useFavoriteRepos()
-  const { repos } = useRepos()
+  const { repos, canLoadMore, loadMore } = useRepos()
 
-  const favoriteRepos = computed(() => {
+  const favoriteRepos = computed<RepoBase[]>(() =>
-    return repos.value.filter((repo) =>
+    savedFavoriteRepos.value.map((fav) => ({
-      savedFavoriteRepos.value.find(
+      id: fav._id?.startsWith(FAVORITE_ID_PREFIX)
-        (fav) => fav._id?.includes(repo.id) ?? false
+        ? fav._id.slice(FAVORITE_ID_PREFIX.length)
-      )
+        : (fav._id ?? ""),
-    )
+      name: fav.name,
-  })
+      isPrivate: fav.isPrivate
-
+    }))
-  const otherRepos = computed(() => {
+  )
-    return repos.value.filter(
-      (repo) => !favoriteRepos.value.find((favorite) => favorite.id === repo.id)
-    )
-  })
 
   const favoriteCheckboxes = computed(() =>
     favoriteRepos.value.map((favorite) => favorite.id)
   )
 
+  const otherRepos = computed(() => {
+    const starredIds = new Set(favoriteCheckboxes.value)
+    const starredNames = new Set(favoriteRepos.value.map((r) => r.name))
+    return repos.value.filter(
+      (repo) => !starredIds.has(repo.id) && !starredNames.has(repo.name)
+    )
+  })
+
   const toggleCheckbox = async (repo: RepoBase) => {
     if (favoriteCheckboxes.value.includes(repo.id)) {
       await removeFavorite(repo)
@@ -38,6 +45,8 @@ export const useRepoList = () => {
     favoriteRepos,
     otherRepos,
     favoriteCheckboxes,
-    toggleCheckbox
+    toggleCheckbox,
+    canLoadMore,
+    loadMore
   }
 }

src/modules/repo/interfaces/UserSettings.ts

@@ -8,4 +8,7 @@ export interface UserSettings extends Model<DataType.UserSettings> {
   fontSize?: string
   chosenFontSize?: string
   backlink?: boolean
+  chosenTitleFont?: string
+  chosenBodyFont?: string
+  pageWidth?: string
 }

src/modules/repo/services/octo.spec.ts

@@ -0,0 +1,62 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+vi.mock("@/modules/user/service/signIn", () => ({
+  getAccessToken: vi.fn().mockResolvedValue({ token: "test-token" })
+}))
+
+import { DEFAULT_OCTOKIT_TIMEOUT_MS, getOctokit } from "./octo"
+
+const okResponse = () =>
+  new Response("{}", {
+    status: 200,
+    headers: { "content-type": "application/json" }
+  })
+
+describe("getOctokit timeout hook", () => {
+  beforeEach(() => {
+    vi.restoreAllMocks()
+  })
+  afterEach(() => {
+    vi.useRealTimers()
+    vi.restoreAllMocks()
+  })
+
+  it("injects an AbortSignal.timeout into requests by default", async () => {
+    const timeoutSpy = vi.spyOn(AbortSignal, "timeout")
+    let receivedSignal: AbortSignal | undefined
+    const mockFetch = vi.fn(async (_url: string, init: RequestInit) => {
+      receivedSignal = init.signal ?? undefined
+      return okResponse()
+    })
+
+    const octokit = await getOctokit()
+    await octokit.request("GET /user", {
+      request: { fetch: mockFetch as unknown as typeof fetch }
+    })
+
+    expect(timeoutSpy).toHaveBeenCalledWith(DEFAULT_OCTOKIT_TIMEOUT_MS)
+    expect(receivedSignal).toBeInstanceOf(AbortSignal)
+  })
+
+  it("respects a caller-provided signal and does not overwrite it", async () => {
+    const timeoutSpy = vi.spyOn(AbortSignal, "timeout")
+    const controller = new AbortController()
+    let receivedSignal: AbortSignal | undefined
+    const mockFetch = vi.fn(async (_url: string, init: RequestInit) => {
+      receivedSignal = init.signal ?? undefined
+      return okResponse()
+    })
+
+    const octokit = await getOctokit()
+    await octokit.request("GET /user", {
+      request: {
+        fetch: mockFetch as unknown as typeof fetch,
+        signal: controller.signal
+      }
+    })
+
+    expect(timeoutSpy).not.toHaveBeenCalled()
+    expect(receivedSignal).toBe(controller.signal)
+  })
+
+})

src/modules/repo/services/octo.ts

@@ -1,11 +1,40 @@
 import { Octokit } from "@octokit/rest"
 
-import { getAccessToken } from "@/modules/user/service/signIn"
+import { getAccessToken, refreshToken } from "@/modules/user/service/signIn"
+
+export const DEFAULT_OCTOKIT_TIMEOUT_MS = 8_000
 
 export const getOctokit = async (): Promise<Octokit> => {
   const response = await getAccessToken()
 
-  return new Octokit({
+  const octokit = new Octokit({
     auth: response?.token ?? ""
   })
+
+  octokit.hook.before("request", (options) => {
+    options.request ??= {}
+    if (!options.request.signal) {
+      options.request.signal = AbortSignal.timeout(DEFAULT_OCTOKIT_TIMEOUT_MS)
+    }
+  })
+
+  return octokit
+}
+
+const isUnauthorized = (error: unknown): boolean =>
+  (error as { status?: number })?.status === 401
+
+// Runs an Octokit call; on 401, force-refreshes the token and retries once.
+// Rethrows the original error if the refresh fails or the retry still 401s.
+export const runWithAuthRetry = async <T>(
+  call: (octokit: Octokit) => Promise<T>
+): Promise<T> => {
+  try {
+    return await call(await getOctokit())
+  } catch (error) {
+    if (!isUnauthorized(error)) throw error
+    const refreshed = await refreshToken({ force: true }).catch(() => null)
+    if (!refreshed) throw error
+    return await call(await getOctokit())
+  }
 }

src/modules/repo/services/repo.spec.ts

@@ -0,0 +1,167 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+const { reposGet } = vi.hoisted(() => ({ reposGet: vi.fn() }))
+
+vi.mock("./octo", () => ({
+  getOctokit: vi.fn().mockResolvedValue({
+    repos: { get: reposGet }
+  }),
+  runWithAuthRetry: vi.fn()
+}))
+
+// Stub heavyweight transitive imports so loading repo.ts doesn't spin up the
+// data Web Worker or the full markdown rendering stack.
+vi.mock("@/hooks/useMarkdown.hook", () => ({
+  markdownBuilder: () => ({ render: (s: string) => s })
+}))
+vi.mock("@/modules/note/cache/prepareNoteCache", () => ({
+  prepareNoteCache: () => ({
+    getCachedNote: async () => ({ note: null }),
+    saveCacheNote: vi.fn()
+  })
+}))
+
+import { getOctokit, runWithAuthRetry } from "./octo"
+import {
+  getFiles,
+  getRepoPermission,
+  queryFileContent
+} from "./repo"
+
+const makeOctokitWithRequest = (impl: (route: string, params: unknown) => unknown) => ({
+  request: vi.fn(impl)
+})
+
+describe("getRepoPermission", () => {
+  beforeEach(() => {
+    reposGet.mockReset()
+    vi.mocked(getOctokit).mockResolvedValue({
+      repos: { get: reposGet }
+    } as never)
+  })
+
+  it("returns true when permissions.push is true", async () => {
+    reposGet.mockResolvedValue({
+      data: { permissions: { push: true } }
+    })
+    await expect(getRepoPermission("owner", "repo")).resolves.toBe(true)
+  })
+
+  it("returns false when permissions.push is false", async () => {
+    reposGet.mockResolvedValue({
+      data: { permissions: { push: false } }
+    })
+    await expect(getRepoPermission("owner", "repo")).resolves.toBe(false)
+  })
+
+  it("returns false when permissions is missing (anonymous request)", async () => {
+    reposGet.mockResolvedValue({
+      data: {}
+    })
+    await expect(getRepoPermission("owner", "repo")).resolves.toBe(false)
+  })
+
+  it("returns false when owner or repo is empty", async () => {
+    await expect(getRepoPermission("", "repo")).resolves.toBe(false)
+    await expect(getRepoPermission("owner", "")).resolves.toBe(false)
+    expect(reposGet).not.toHaveBeenCalled()
+  })
+})
+
+describe("getFiles", () => {
+  beforeEach(() => {
+    vi.mocked(getOctokit).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns empty array when owner is missing", async () => {
+    expect(await getFiles("", "repo")).toEqual([])
+    expect(getOctokit).not.toHaveBeenCalled()
+  })
+
+  it("returns empty array when repo is missing", async () => {
+    expect(await getFiles("owner", "")).toEqual([])
+    expect(getOctokit).not.toHaveBeenCalled()
+  })
+
+  it("returns empty array when there are no commits", async () => {
+    const octokit = makeOctokitWithRequest((route) => {
+      if (route === "GET /repos/{owner}/{repo}/commits") {
+        return { data: [] }
+      }
+      throw new Error("unexpected route " + route)
+    })
+    vi.mocked(getOctokit).mockResolvedValue(octokit as never)
+
+    expect(await getFiles("owner", "repo")).toEqual([])
+  })
+
+  it("fetches the tree from the latest commit and filters out non-blob entries", async () => {
+    const octokit = makeOctokitWithRequest((route, params) => {
+      if (route === "GET /repos/{owner}/{repo}/commits") {
+        return {
+          data: [{ commit: { tree: { sha: "TREE_SHA" } } }]
+        }
+      }
+      if (route === "GET /repos/{owner}/{repo}/git/trees/{tree_sha}") {
+        expect((params as { tree_sha: string }).tree_sha).toBe("TREE_SHA")
+        expect((params as { recursive: string }).recursive).toBe("true")
+        return {
+          data: {
+            tree: [
+              { path: "README.md", type: "blob", sha: "a" },
+              { path: "src", type: "tree", sha: "b" },
+              { path: "src/note.md", type: "blob", sha: "c" }
+            ]
+          }
+        }
+      }
+      throw new Error("unexpected route " + route)
+    })
+    vi.mocked(getOctokit).mockResolvedValue(octokit as never)
+
+    const files = await getFiles("owner", "repo")
+
+    expect(files.map((f) => f.path)).toEqual(["README.md", "src/note.md"])
+  })
+})
+
+describe("queryFileContent", () => {
+  beforeEach(() => {
+    vi.mocked(runWithAuthRetry).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns null when owner or repo is missing", async () => {
+    expect(await queryFileContent("", "repo", "sha")).toBeNull()
+    expect(await queryFileContent("owner", "", "sha")).toBeNull()
+    expect(runWithAuthRetry).not.toHaveBeenCalled()
+  })
+
+  it("returns the blob content via runWithAuthRetry", async () => {
+    vi.mocked(runWithAuthRetry).mockImplementation(async (call) => {
+      const octokit = {
+        request: vi.fn().mockResolvedValue({
+          data: { content: "BASE64" }
+        })
+      }
+      return call(octokit as never)
+    })
+
+    expect(await queryFileContent("owner", "repo", "SHA")).toBe("BASE64")
+  })
+
+  it("returns null and swallows errors when the call fails", async () => {
+    const warn = vi.spyOn(console, "warn").mockImplementation(() => {})
+    vi.mocked(runWithAuthRetry).mockRejectedValue(new Error("boom"))
+
+    expect(await queryFileContent("owner", "repo", "SHA")).toBeNull()
+    expect(warn).toHaveBeenCalled()
+  })
+})

src/modules/repo/services/repo.ts

@@ -2,7 +2,19 @@ import { markdownBuilder } from "@/hooks/useMarkdown.hook"
 import { prepareNoteCache } from "@/modules/note/cache/prepareNoteCache"
 import { RepoFile } from "@/modules/repo/interfaces/RepoFile"
 import { UserSettings } from "@/modules/repo/interfaces/UserSettings"
-import { getOctokit } from "@/modules/repo/services/octo"
+import { getOctokit, runWithAuthRetry } from "@/modules/repo/services/octo"
+
+export const getRepoPermission = async (
+  owner: string,
+  repo: string
+): Promise<boolean> => {
+  if (!owner || !repo) {
+    return false
+  }
+  const octokit = await getOctokit()
+  const { data } = await octokit.repos.get({ owner, repo })
+  return data.permissions?.push ?? false
+}
 
 export const getFiles = async (
   owner: string,
@@ -30,7 +42,8 @@ export const getFiles = async (
       owner,
       repo,
       tree_sha: lastCommit.commit.tree.sha,
-      recursive: "true"
+      recursive: "true",
+      request: { signal: AbortSignal.timeout(20_000) }
     }
   )
 
@@ -82,6 +95,10 @@ export const getMainReadme = async (owner: string, repo: string) => {
     if (cachedReadme) {
       return render(cachedReadme.content)
     }
+
+    // No cached fallback — surface the error so the caller can classify
+    // network/timeout failures vs auth/404 and tailor the UI accordingly.
+    throw error
   }
 
   return null
@@ -104,7 +121,16 @@ export const getUserSettingsContent = async (
     return null
   }
 
-  return JSON.parse(atob(content)) as UserSettings
+  const raw = JSON.parse(atob(content)) as UserSettings & {
+    t?: string
+    p?: string
+  }
+  const { t, p, ...rest } = raw
+  return {
+    ...rest,
+    chosenTitleFont: t,
+    chosenBodyFont: p
+  }
 }
 
 export const queryFileContent = async (
@@ -112,20 +138,21 @@ export const queryFileContent = async (
   repo: string,
   sha: string
 ) => {
-  const octokit = await getOctokit()
-
   if (!user || !repo) {
-    null
+    return null
   }
 
-  const file = await octokit.request(
+  try {
-    "GET /repos/{owner}/{repo}/git/blobs/{file_sha}",
+    const file = await runWithAuthRetry((octokit) =>
-    {
+      octokit.request("GET /repos/{owner}/{repo}/git/blobs/{file_sha}", {
-      owner: user,
+        owner: user,
-      repo: repo,
+        repo: repo,
-      file_sha: sha
+        file_sha: sha
-    }
+      })
-  )
+    )
-
+    return file?.data.content ?? null
-  return file?.data.content ?? null
+  } catch (error) {
+    console.warn("queryFileContent failed", { user, repo, sha, error })
+    return null
+  }
 }

src/modules/repo/services/runWithAuthRetry.spec.ts

@@ -0,0 +1,97 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+vi.mock("@/modules/user/service/signIn", () => ({
+  getAccessToken: vi.fn(),
+  refreshToken: vi.fn()
+}))
+
+import {
+  getAccessToken,
+  refreshToken
+} from "@/modules/user/service/signIn"
+
+import { runWithAuthRetry } from "./octo"
+
+const unauthorized = () => Object.assign(new Error("Bad credentials"), { status: 401 })
+const notFound = () => Object.assign(new Error("Not found"), { status: 404 })
+
+describe("runWithAuthRetry", () => {
+  beforeEach(() => {
+    vi.mocked(getAccessToken).mockResolvedValue({
+      token: "t1"
+    } as Awaited<ReturnType<typeof getAccessToken>>)
+    vi.mocked(refreshToken).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns the call result on success without refreshing", async () => {
+    const call = vi.fn().mockResolvedValue("ok")
+
+    const result = await runWithAuthRetry(call)
+
+    expect(result).toBe("ok")
+    expect(call).toHaveBeenCalledTimes(1)
+    expect(refreshToken).not.toHaveBeenCalled()
+  })
+
+  it("rethrows non-401 errors immediately without refreshing", async () => {
+    const err = notFound()
+    const call = vi.fn().mockRejectedValue(err)
+
+    await expect(runWithAuthRetry(call)).rejects.toBe(err)
+    expect(refreshToken).not.toHaveBeenCalled()
+    expect(call).toHaveBeenCalledTimes(1)
+  })
+
+  it("refreshes and retries once on 401, returning the retry result", async () => {
+    vi.mocked(refreshToken).mockResolvedValue({
+      token: "t2"
+    } as Awaited<ReturnType<typeof refreshToken>>)
+
+    const call = vi
+      .fn()
+      .mockRejectedValueOnce(unauthorized())
+      .mockResolvedValueOnce("after-refresh")
+
+    const result = await runWithAuthRetry(call)
+
+    expect(result).toBe("after-refresh")
+    expect(refreshToken).toHaveBeenCalledWith({ force: true })
+    expect(call).toHaveBeenCalledTimes(2)
+  })
+
+  it("rethrows the original 401 when refresh returns null", async () => {
+    vi.mocked(refreshToken).mockResolvedValue(null)
+    const err = unauthorized()
+    const call = vi.fn().mockRejectedValue(err)
+
+    await expect(runWithAuthRetry(call)).rejects.toBe(err)
+    expect(call).toHaveBeenCalledTimes(1)
+  })
+
+  it("rethrows the original 401 when refresh itself throws", async () => {
+    vi.mocked(refreshToken).mockRejectedValue(new Error("network down"))
+    const err = unauthorized()
+    const call = vi.fn().mockRejectedValue(err)
+
+    await expect(runWithAuthRetry(call)).rejects.toBe(err)
+  })
+
+  it("propagates a retry-time error after a successful refresh", async () => {
+    vi.mocked(refreshToken).mockResolvedValue({
+      token: "t2"
+    } as Awaited<ReturnType<typeof refreshToken>>)
+
+    const retryErr = unauthorized()
+    const call = vi
+      .fn()
+      .mockRejectedValueOnce(unauthorized())
+      .mockRejectedValueOnce(retryErr)
+
+    await expect(runWithAuthRetry(call)).rejects.toBe(retryErr)
+    expect(call).toHaveBeenCalledTimes(2)
+  })
+})

src/modules/repo/store/userRepo.store.spec.ts

@@ -0,0 +1,286 @@
+import { createPinia, setActivePinia } from "pinia"
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"
+
+vi.mock("@/data/data", () => ({
+  data: {
+    get: vi.fn().mockResolvedValue(null),
+    update: vi.fn().mockResolvedValue(undefined),
+    add: vi.fn().mockResolvedValue(undefined)
+  },
+  generateId: (type: string, id: string) => `${type}-${id}`
+}))
+
+vi.mock("@/modules/repo/services/repo", () => ({
+  getFiles: vi.fn().mockResolvedValue([]),
+  getMainReadme: vi.fn().mockResolvedValue(null),
+  getCachedMainReadme: vi.fn().mockResolvedValue(null),
+  getUserSettingsContent: vi.fn().mockResolvedValue(null),
+  getRepoPermission: vi.fn().mockResolvedValue(false)
+}))
+
+vi.mock("@/modules/user/service/signIn", () => ({
+  refreshToken: vi.fn().mockResolvedValue(null)
+}))
+
+import { data } from "@/data/data"
+import {
+  getCachedMainReadme,
+  getFiles,
+  getMainReadme,
+  getRepoPermission,
+  getUserSettingsContent
+} from "@/modules/repo/services/repo"
+
+import { useUserRepoStore } from "./userRepo.store"
+
+const flushAsync = () => new Promise((r) => setTimeout(r, 0))
+
+describe("userRepo store — synchronous mutations", () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+    localStorage.clear()
+  })
+
+  afterEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it("resetUserRepo clears user, repo, files, and settings", () => {
+    const store = useUserRepoStore()
+    store.user = "alice"
+    store.repo = "notes"
+    store.files = [{ sha: "x", path: "a.md", type: "blob" }] as never
+    store.userSettings = { $type: 1 } as never
+
+    store.resetUserRepo()
+
+    expect(store.user).toBe("")
+    expect(store.repo).toBe("")
+    expect(store.files).toEqual([])
+    expect(store.userSettings).toBeUndefined()
+  })
+
+  it("resetFiles clears files and sets readme to null", () => {
+    const store = useUserRepoStore()
+    store.files = [{ sha: "x", path: "a.md", type: "blob" }] as never
+    store.readme = "<p>hi</p>"
+
+    store.resetFiles()
+
+    expect(store.files).toEqual([])
+    expect(store.readme).toBeNull()
+  })
+
+  it("addFile appends a new file with a unique sha", () => {
+    const store = useUserRepoStore()
+    store.user = "alice"
+    store.repo = "notes"
+    store.files = [{ sha: "old", path: "a.md", type: "blob" }] as never
+
+    store.addFile({ sha: "new", path: "b.md", type: "blob" } as never)
+
+    expect(store.files.map((f) => f.sha)).toEqual(["old", "new"])
+    expect(vi.mocked(data.update)).toHaveBeenCalled()
+  })
+
+  it("addFile is a no-op when the sha already exists", () => {
+    const store = useUserRepoStore()
+    store.user = "alice"
+    store.repo = "notes"
+    store.files = [{ sha: "x", path: "a.md", type: "blob" }] as never
+
+    store.addFile({ sha: "x", path: "duplicate.md", type: "blob" } as never)
+
+    expect(store.files).toHaveLength(1)
+    expect(vi.mocked(data.update)).not.toHaveBeenCalled()
+  })
+
+  it("addFile is a no-op when sha is missing", () => {
+    const store = useUserRepoStore()
+    store.files = []
+
+    store.addFile({ path: "no-sha.md", type: "blob" } as never)
+
+    expect(store.files).toHaveLength(0)
+    expect(vi.mocked(data.update)).not.toHaveBeenCalled()
+  })
+
+  it("setFontFamily initializes userSettings when absent and persists to localStorage", () => {
+    const store = useUserRepoStore()
+    store.user = "alice"
+    store.repo = "notes"
+
+    store.setFontFamily("Inter")
+
+    expect(store.userSettings?.chosenFontFamily).toBe("Inter")
+    const persisted = JSON.parse(
+      localStorage.getItem("remanso:layout:alice:notes") as string
+    )
+    expect(persisted.chosenFontFamily).toBe("Inter")
+  })
+
+  it("setFontSize, setTitleFont, setBodyFont each persist their respective field", () => {
+    const store = useUserRepoStore()
+    store.user = "alice"
+    store.repo = "notes"
+
+    store.setFontSize("18px")
+    store.setTitleFont("Serif")
+    store.setBodyFont("Sans")
+
+    const persisted = JSON.parse(
+      localStorage.getItem("remanso:layout:alice:notes") as string
+    )
+    expect(persisted.chosenFontSize).toBe("18px")
+    expect(persisted.chosenTitleFont).toBe("Serif")
+    expect(persisted.chosenBodyFont).toBe("Sans")
+  })
+})
+
+describe("userRepo store — setUserRepo", () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+    localStorage.clear()
+    vi.clearAllMocks()
+    vi.mocked(data.get).mockResolvedValue(null as never)
+    vi.mocked(getFiles).mockResolvedValue([])
+    vi.mocked(getMainReadme).mockResolvedValue(null)
+    vi.mocked(getCachedMainReadme).mockResolvedValue(null)
+    vi.mocked(getUserSettingsContent).mockResolvedValue(null)
+    vi.mocked(getRepoPermission).mockResolvedValue(false)
+  })
+
+  it("sets user and repo immediately and clears loadError", async () => {
+    const store = useUserRepoStore()
+    store.loadError = "auth"
+
+    await store.setUserRepo("alice", "notes")
+
+    expect(store.user).toBe("alice")
+    expect(store.repo).toBe("notes")
+    expect(store.loadError).toBeNull()
+  })
+
+  it("populates files from getFiles on success", async () => {
+    vi.mocked(getFiles).mockResolvedValue([
+      { sha: "a", path: "x.md", type: "blob" } as never
+    ])
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.files.map((f) => f.sha)).toEqual(["a"])
+  })
+
+  it("sets readme from getMainReadme on success", async () => {
+    vi.mocked(getMainReadme).mockResolvedValue("<p>hi</p>")
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.readme).toBe("<p>hi</p>")
+  })
+
+  it("classifies 401 errors from getFiles as auth", async () => {
+    vi.mocked(getFiles).mockRejectedValue(
+      Object.assign(new Error("Unauthorized"), { status: 401 })
+    )
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.loadError).toBe("auth")
+  })
+
+  it("classifies TimeoutError as network", async () => {
+    vi.mocked(getFiles).mockRejectedValue(
+      Object.assign(new Error("Timed out"), { name: "TimeoutError" })
+    )
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.loadError).toBe("network")
+  })
+
+  it("classifies 500-range errors as network", async () => {
+    vi.mocked(getFiles).mockRejectedValue(
+      Object.assign(new Error("Server error"), { status: 503 })
+    )
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.loadError).toBe("network")
+  })
+
+  it("does NOT surface loadError from getMainReadme when a cached readme is present", async () => {
+    vi.mocked(getCachedMainReadme).mockResolvedValue("<p>cached</p>")
+    vi.mocked(getMainReadme).mockRejectedValue(
+      Object.assign(new Error("Server error"), { status: 503 })
+    )
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.readme).toBe("<p>cached</p>")
+    expect(store.loadError).toBeNull()
+  })
+
+  it("surfaces loadError from getMainReadme when no cached readme is present", async () => {
+    vi.mocked(getCachedMainReadme).mockResolvedValue(null)
+    vi.mocked(getMainReadme).mockRejectedValue(
+      Object.assign(new Error("Unauthorized"), { status: 401 })
+    )
+    vi.spyOn(console, "warn").mockImplementation(() => {})
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.readme).toBeNull()
+    expect(store.loadError).toBe("auth")
+  })
+
+  it("ignores stale getFiles results when a newer setUserRepo has been called (race guard)", async () => {
+    let resolveStale: (files: never[]) => void = () => {}
+    vi.mocked(getFiles).mockImplementationOnce(
+      () =>
+        new Promise<never[]>((r) => {
+          resolveStale = r
+        })
+    )
+    vi.mocked(getFiles).mockImplementationOnce(async () => [
+      { sha: "fresh", path: "fresh.md", type: "blob" } as never
+    ])
+
+    const store = useUserRepoStore()
+
+    await store.setUserRepo("alice", "stale-repo")
+    await store.setUserRepo("alice", "fresh-repo")
+
+    resolveStale([{ sha: "stale", path: "stale.md", type: "blob" } as never])
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.repo).toBe("fresh-repo")
+    expect(store.files.map((f) => f.sha)).toEqual(["fresh"])
+  })
+})

src/modules/repo/store/userRepo.store.ts

@@ -1,6 +1,7 @@
 import { defineStore } from "pinia"
+import { toRaw } from "vue"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { RepoFile } from "@/modules/repo/interfaces/RepoFile"
 import { UserSettings } from "@/modules/repo/interfaces/UserSettings"
@@ -9,10 +10,13 @@ import {
   getCachedMainReadme,
   getFiles,
   getMainReadme,
+  getRepoPermission,
   getUserSettingsContent
 } from "@/modules/repo/services/repo"
 import { refreshToken } from "@/modules/user/service/signIn"
 
+export type RepoLoadError = "auth" | "network" | null
+
 interface State {
   user: string
   repo: string
@@ -20,6 +24,19 @@ interface State {
   readme?: string | null
   userSettings?: UserSettings | null
   needToLogin: boolean
+  loadError: RepoLoadError
+  canPush: boolean
+  _requestId: number
+}
+
+const classifyLoadError = (error: unknown): "auth" | "network" => {
+  if (error && typeof error === "object") {
+    const e = error as { name?: string; status?: number }
+    if (e.name === "TimeoutError" || e.name === "AbortError") return "network"
+    if (e.status === 401 || e.status === 403 || e.status === 404) return "auth"
+    if (typeof e.status === "number" && e.status >= 500) return "network"
+  }
+  return "network"
 }
 
 export const useUserRepoStore = defineStore("USER_REPO_STATE", {
@@ -29,40 +46,98 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
     files: [],
     readme: undefined,
     userSettings: undefined,
-    needToLogin: false
+    needToLogin: false,
+    loadError: null,
+    canPush: false,
+    _requestId: 0
   }),
   actions: {
+    _persistLayout() {
+      if (!this.userSettings) return
+      try {
+        const {
+          chosenTitleFont,
+          chosenBodyFont,
+          chosenFontSize,
+          chosenFontFamily,
+          pageWidth
+        } = this.userSettings
+        localStorage.setItem(
+          `remanso:layout:${this.user}:${this.repo}`,
+          JSON.stringify({
+            chosenTitleFont,
+            chosenBodyFont,
+            chosenFontSize,
+            chosenFontFamily,
+            pageWidth
+          })
+        )
+      } catch {
+        // ignore
+      }
+    },
     async setUserRepo(user: string, repo: string) {
+      const requestId = ++this._requestId
       this.user = user
       this.repo = repo
+      this.loadError = null
+      this.canPush = false
 
-      const savedRepoId = data.generateId(DataType.SavedRepo, `${user}-${repo}`)
+      let lsLayout: Partial<UserSettings> = {}
-      const cachedSavedRepo = await data.get<DataType.SavedRepo, SavedRepo>(
+      try {
-        savedRepoId
+        const lsRaw = localStorage.getItem(`remanso:layout:${user}:${repo}`)
-      )
+        if (lsRaw) lsLayout = JSON.parse(lsRaw)
+      } catch {
+        // ignore
+      }
+
+      if (Object.keys(lsLayout).length) {
+        if (!this.userSettings)
+          this.userSettings = { $type: DataType.UserSettings }
+        Object.assign(this.userSettings, lsLayout)
+      }
+
+      const savedRepoId = generateId(DataType.SavedRepo, `${user}-${repo}`)
+      const userSettingsId = `UserSetting-${user}-${repo}`
+
+      const [cachedSavedRepo, cachedUserSettings] = await Promise.all([
+        data.get<DataType.SavedRepo, SavedRepo>(savedRepoId),
+        data.get<DataType.UserSettings, UserSettings>(userSettingsId)
+      ])
+
+      if (requestId !== this._requestId) return
 
       if (cachedSavedRepo) {
         this.files = cachedSavedRepo.files
       }
 
+      if (cachedUserSettings) {
+        // localStorage layout choices take priority over PouchDB cache
+        this.userSettings = { ...cachedUserSettings, ...lsLayout }
+      }
+
       try {
         await refreshToken()
       } catch (error) {
         console.warn("impossible to refresh token", error)
       }
 
-      const userSettingsId = `UserSetting-${user}-${repo}`
+      if (requestId !== this._requestId) return
-      const cachedUserSettings = await data.get<
-        DataType.UserSettings,
-        UserSettings
-      >(userSettingsId)
 
-      if (cachedUserSettings) {
+      getRepoPermission(user, repo)
-        this.userSettings = cachedUserSettings
+        .then((canPush) => {
-      }
+          if (requestId !== this._requestId) return
+          this.canPush = canPush
+        })
+        .catch((error) => {
+          if (requestId !== this._requestId) return
+          console.warn("getRepoPermission failed", error)
+          this.canPush = false
+        })
 
       getFiles(user, repo)
         .then(async (files) => {
+          if (requestId !== this._requestId) return
           data.update<DataType.SavedRepo, SavedRepo>({
             _id: savedRepoId,
             $type: DataType.SavedRepo,
@@ -74,6 +149,7 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
           return getUserSettingsContent(user, repo, files)
         })
         .then((userSettings) => {
+          if (requestId !== this._requestId) return
           const chosenFontFamily = userSettings?.fontFamilies?.find(
             (font) => font === this.userSettings?.chosenFontFamily
           )
@@ -81,27 +157,65 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
             : userSettings?.fontFamily
           const chosenFontSize =
             this.userSettings?.chosenFontSize ?? userSettings?.fontSize
-          this.userSettings = userSettings
+          const chosenTitleFont =
-
+            this.userSettings?.chosenTitleFont ??
-          if (!this.userSettings) {
+            userSettings?.chosenTitleFont ??
-            return
+            chosenFontFamily
+          const chosenBodyFont =
+            this.userSettings?.chosenBodyFont ??
+            userSettings?.chosenBodyFont ??
+            chosenFontFamily
+          if (userSettings) {
+            this.userSettings = userSettings
+          } else if (!this.userSettings) {
+            this.userSettings = { $type: DataType.UserSettings }
           }
 
           this.userSettings.chosenFontFamily =
             chosenFontFamily ?? this.userSettings.fontFamily
           this.userSettings.chosenFontSize =
             chosenFontSize ?? this.userSettings.fontSize
+          this.userSettings.chosenTitleFont = chosenTitleFont
+          this.userSettings.chosenBodyFont = chosenBodyFont
 
+          this._persistLayout()
+
+          // Persist only repo config fields — chosen* are localStorage-only
+          const {
+            chosenTitleFont: _t,
+            chosenBodyFont: _b,
+            chosenFontSize: _s,
+            chosenFontFamily: _f,
+            ...repoConfig
+          } = toRaw(this.userSettings)
           data.update<DataType.UserSettings, UserSettings>({
-            ...this.userSettings,
+            ...repoConfig,
             _id: userSettingsId
           })
         })
+        .catch((error) => {
+          if (requestId !== this._requestId) return
+          console.warn("getFiles failed", error)
+          this.loadError = classifyLoadError(error)
+        })
 
-      getCachedMainReadme(user, repo).then(async (cachedReadme) => {
+      getCachedMainReadme(user, repo)
-        this.readme = cachedReadme
+        .then(async (cachedReadme) => {
-        this.readme = await getMainReadme(user, repo)
+          if (requestId !== this._requestId) return
-      })
+          if (cachedReadme) this.readme = cachedReadme
+          const fetched = await getMainReadme(user, repo)
+          if (requestId !== this._requestId) return
+          this.readme = fetched
+        })
+        .catch((error) => {
+          if (requestId !== this._requestId) return
+          console.warn("getMainReadme failed", error)
+          // Only surface the error UI if we have nothing cached to display.
+          if (!this.readme) {
+            this.readme = null
+            this.loadError = classifyLoadError(error)
+          }
+        })
     },
     addFile(file: RepoFile) {
       if (!file.sha) {
@@ -114,11 +228,36 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
         return
       }
 
-      const savedRepoId = data.generateId(
+      const savedRepoId = generateId(
         DataType.SavedRepo,
         `${this.user}-${this.repo}`
       )
-      const newFiles = [...this.files.filter((f) => f.sha !== file.sha), file]
+      const newFiles = [
+        ...toRaw(this.files).filter((f) => f.sha !== file.sha),
+        toRaw(file)
+      ]
+      data.update<DataType.SavedRepo, SavedRepo>({
+        _id: savedRepoId,
+        $type: DataType.SavedRepo,
+        repo: this.repo,
+        user: this.user,
+        files: newFiles
+      })
+      this.files = newFiles
+    },
+    registerUploadedFile(file: RepoFile) {
+      if (!file.path) {
+        return
+      }
+
+      const savedRepoId = generateId(
+        DataType.SavedRepo,
+        `${this.user}-${this.repo}`
+      )
+      const newFiles = [
+        ...toRaw(this.files).filter((f) => f.path !== file.path),
+        toRaw(file)
+      ]
       data.update<DataType.SavedRepo, SavedRepo>({
         _id: savedRepoId,
         $type: DataType.SavedRepo,
@@ -132,35 +271,40 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
       this.user = ""
       this.repo = ""
       this.resetFiles()
+      this.userSettings = undefined
     },
     resetFiles() {
       this.files = []
       this.readme = null
-      this.userSettings = undefined
+      this.canPush = false
     },
     setFontFamily(fontFamily: string) {
       if (!this.userSettings) {
-        return
+        this.userSettings = { $type: DataType.UserSettings }
       }
       this.userSettings.chosenFontFamily = fontFamily
-
+      this._persistLayout()
-      const userSettingsId = `UserSetting-${this.user}-${this.repo}`
-      data.update<DataType.UserSettings, UserSettings>({
-        ...this.userSettings,
-        _id: userSettingsId
-      })
     },
     setFontSize(fontSize: string) {
       if (!this.userSettings) {
-        return
+        this.userSettings = { $type: DataType.UserSettings }
       }
       this.userSettings.chosenFontSize = fontSize
-
+      this._persistLayout()
-      const userSettingsId = `UserSetting-${this.user}-${this.repo}`
+    },
-      data.update<DataType.UserSettings, UserSettings>({
+    setTitleFont(font: string) {
-        ...this.userSettings,
+      if (!this.userSettings) {
-        _id: userSettingsId
+        this.userSettings = { $type: DataType.UserSettings }
-      })
+      }
+      this.userSettings.chosenTitleFont = font
+      this._persistLayout()
+    },
+    setBodyFont(font: string) {
+      if (!this.userSettings) {
+        this.userSettings = { $type: DataType.UserSettings }
+      }
+      this.userSettings.chosenBodyFont = font
+      this._persistLayout()
     }
   }
 })

src/modules/user/hooks/useUserSettings.hook.ts

@@ -1,10 +1,12 @@
 import { watchEffect } from "vue"
 
+import { resetNoteWidthCache } from "@/constants/note-width"
 import { useUserRepoStore } from "@/modules/repo/store/userRepo.store"
 import { downloadFont } from "@/utils/downloadFont"
 
 const DEFAULT_FONT_POLICY = '"Libertinus Serif", serif'
 const DEFAULT_FONT_SIZE = "16px"
+const DEFAULT_NOTE_WIDTH = "500px"
 
 export const useUserSettings = () => {
   const store = useUserRepoStore()
@@ -12,10 +14,19 @@ export const useUserSettings = () => {
   watchEffect(() => {
     const root = document.documentElement
 
-    const fontFamily = store.userSettings?.chosenFontFamily
     const fontSize = store.userSettings?.chosenFontSize
+    const bodyFont = store.userSettings?.chosenBodyFont
+    const titleFont = store.userSettings?.chosenTitleFont
 
-    downloadFont(fontFamily || DEFAULT_FONT_POLICY)
+    downloadFont(bodyFont || DEFAULT_FONT_POLICY, "--font-family")
+    downloadFont(
+      titleFont || bodyFont || DEFAULT_FONT_POLICY,
+      "--title-font-family"
+    )
     root.style.setProperty("--font-size", fontSize || DEFAULT_FONT_SIZE)
+
+    const pageWidth = store.userSettings?.pageWidth ?? DEFAULT_NOTE_WIDTH
+    root.style.setProperty("--note-width", pageWidth)
+    resetNoteWidthCache()
   })
 }

src/modules/user/service/oauthReturnPath.spec.ts

@@ -0,0 +1,30 @@
+import { beforeEach, describe, expect, it } from "vitest"
+
+import {
+  consumeGithubOAuthReturnPath,
+  GITHUB_OAUTH_RETURN_PATH_KEY
+} from "./oauthReturnPath"
+
+describe("consumeGithubOAuthReturnPath", () => {
+  beforeEach(() => {
+    sessionStorage.clear()
+  })
+
+  it("returns the stored path and clears the key", () => {
+    sessionStorage.setItem(GITHUB_OAUTH_RETURN_PATH_KEY, "/alice/notes")
+
+    expect(consumeGithubOAuthReturnPath()).toBe("/alice/notes")
+    expect(sessionStorage.getItem(GITHUB_OAUTH_RETURN_PATH_KEY)).toBeNull()
+  })
+
+  it("returns null when nothing is stored", () => {
+    expect(consumeGithubOAuthReturnPath()).toBeNull()
+  })
+
+  it("returns null on the second call (consume-once semantics)", () => {
+    sessionStorage.setItem(GITHUB_OAUTH_RETURN_PATH_KEY, "/x")
+
+    expect(consumeGithubOAuthReturnPath()).toBe("/x")
+    expect(consumeGithubOAuthReturnPath()).toBeNull()
+  })
+})

src/modules/user/service/oauthReturnPath.ts

@@ -0,0 +1,7 @@
+export const GITHUB_OAUTH_RETURN_PATH_KEY = "github-oauth-return-path"
+
+export const consumeGithubOAuthReturnPath = (): string | null => {
+  const path = sessionStorage.getItem(GITHUB_OAUTH_RETURN_PATH_KEY)
+  sessionStorage.removeItem(GITHUB_OAUTH_RETURN_PATH_KEY)
+  return path
+}

src/modules/user/service/signIn.ts

@@ -1,7 +1,7 @@
 import { Octokit } from "@octokit/rest"
 import { addMinutes, addSeconds, isBefore } from "date-fns"
 
-import { data } from "@/data/data"
+import { data, generateId } from "@/data/data"
 import { DataType } from "@/data/DataType.enum"
 import { GithubAccessToken } from "@/data/models/GithubAccessToken"
 import { GithubToken } from "@/modules/user/interfaces/GithubToken"
@@ -26,7 +26,7 @@ export const needToRefreshToken = async () => {
   const accessToken = await data.get<
     DataType.GithubAccessToken,
     GithubAccessToken
-  >(data.generateId(DataType.GithubAccessToken, personalTokenId))
+  >(generateId(DataType.GithubAccessToken, personalTokenId))
 
   if (!accessToken) {
     return false
@@ -38,17 +38,23 @@ export const needToRefreshToken = async () => {
   return isBefore(expirationDate, minimumViableDate)
 }
 
-export const refreshToken = async () => {
+let inFlightRefresh: Promise<GithubAccessToken | null> | null = null
+
+const performRefresh = async ({
+  force
+}: {
+  force: boolean
+}): Promise<GithubAccessToken | null> => {
   const accessToken = await data.get<
     DataType.GithubAccessToken,
     GithubAccessToken
-  >(data.generateId(DataType.GithubAccessToken, personalTokenId))
+  >(generateId(DataType.GithubAccessToken, personalTokenId))
 
   if (!accessToken) {
     return null
   }
 
-  const needRefresh = await needToRefreshToken()
+  const needRefresh = force || (await needToRefreshToken())
 
   if (needRefresh) {
     const authenticationServerURL = new URL(AUTHENTICATION_SERVER)
@@ -70,11 +76,23 @@ export const refreshToken = async () => {
   return accessToken
 }
 
+// GitHub refresh tokens are single-use, so concurrent refreshes race and the
+// loser ends up with a revoked refresh token. Dedupe in-flight calls.
+export const refreshToken = async ({
+  force = false
+}: { force?: boolean } = {}): Promise<GithubAccessToken | null> => {
+  if (inFlightRefresh) return inFlightRefresh
+  inFlightRefresh = performRefresh({ force }).finally(() => {
+    inFlightRefresh = null
+  })
+  return inFlightRefresh
+}
+
 export const getAccessToken = async () => {
   const response = await data.get<
     DataType.GithubAccessToken,
     GithubAccessToken
-  >(data.generateId(DataType.GithubAccessToken, personalTokenId))
+  >(generateId(DataType.GithubAccessToken, personalTokenId))
 
   return response
 }
@@ -94,7 +112,7 @@ export const saveAccessToken = async (githubToken: GithubToken) => {
 
   const accessToken: GithubAccessToken = {
     ...actualPAT,
-    _id: data.generateId(DataType.GithubAccessToken, personalTokenId),
+    _id: generateId(DataType.GithubAccessToken, personalTokenId),
     $type: DataType.GithubAccessToken,
     token: githubToken.access_token,
     expiresIn: githubToken.expires_in,

src/router/router.ts

@@ -95,8 +95,9 @@ export const router = createRouter({
   routes
 })
 
-router.beforeEach(() => {
+router.beforeEach((to, from) => {
   if (!("startViewTransition" in document)) return
+  if (to.path === from.path) return
   return new Promise<void>((resolve) => {
     ;(
       document as Document & {
@@ -104,7 +105,12 @@ router.beforeEach(() => {
       }
     ).startViewTransition(async () => {
       resolve()
-      await nextTick()
+      await new Promise<void>((r) => {
+        const unwatch = router.afterEach(() => {
+          unwatch()
+          nextTick().then(r)
+        })
+      })
     })
   })
 })

src/shims-vue.d.ts

@@ -1,3 +1,9 @@
+declare module "*.vue" {
+  import type { DefineComponent } from "vue"
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}
+
 declare module "pouchdb-adapter-indexeddb"
 declare module "@toycode/markdown-it-class"
 declare module "markdown-it-block-embed"

src/styles/app.css

@@ -6,12 +6,19 @@
 :root {
   --primary-color: #ffa4c0;
   --font-family: "Libertinus Serif", serif;
+  --title-font-family: "Libertinus Serif", serif;
   --font-size: 13pt;
   --font-color: #4a4a4a;
   --link: #445fb9;
   --light-link: lighten(#445fb9, 45%);
   --background-color: #ffffff;
   --note-width: 500px;
+  --note-canvas-bg: color-mix(
+    in oklch,
+    var(--color-base-100) 60%,
+    var(--color-base-200)
+  );
+  --note-sheet-shadow: 1px 0 8px rgb(0 0 0 / 6%);
   --color-contrast-content: var(--color-success);
   --notyf-margin: 0.5rem;
 }
@@ -24,8 +31,8 @@
 
 @plugin 'daisyui' {
   themes:
-    garden --default,
+    light --default,
-    dim --prefersdark;
+    dracula --prefersdark;
 }
 
 @config '../../tailwind.config.js';
@@ -48,21 +55,17 @@
   }
 }
 
-html {
+html,
-  overflow-y: auto;
-  overflow-x: auto;
-}
-
 body {
-  height: 100vh;
+  height: 100dvh;
+  overflow: hidden;
   scroll-behavior: smooth;
-  overflow-y: auto;
 }
 
-@media screen and (min-width: 769px) {
+@media screen and (max-width: 768px) {
   html,
   body {
-    overflow-y: hidden;
+    overflow-y: auto;
   }
 }
 
@@ -77,7 +80,7 @@ body {
 }
 
 #app {
-  height: 100vh;
+  height: 100dvh;
   display: flex;
 }
 
@@ -92,18 +95,36 @@ a {
   }
 }
 
-a.title-stacked-note-link {
+.title-stacked-note {
   color: var(--color-base-content);
-  display: block;
   text-decoration: none;
   position: sticky;
   top: 0;
+  overflow: visible;
+  display: flex;
+  gap: 0.5rem;
+  align-items: center;
+}
 
+a.title-stacked-note-link {
+  display: block;
+  overflow: visible;
   &:hover {
     cursor: pointer;
+    text-decoration: none;
   }
 }
 
+.title-stacked-note ul,
+.title-stacked-note li {
+  margin-top: 0;
+  margin-bottom: 0;
+  padding-left: 0;
+  text-decoration: none;
+  display: flex;
+  gap: 1rem;
+}
+
 .notyf__toast {
   border-radius: revert-layer;
   border: none;
@@ -168,6 +189,89 @@ pre.mermaid {
   background-color: var(--color-base-content);
 }
 
+pre.tikz {
+  display: block;
+  overflow-x: auto;
+  text-align: center;
+  padding: 0.5rem;
+  background: transparent;
+}
+
+pre.tikz svg {
+  max-width: 100%;
+  height: auto;
+}
+
+/* TikZ SVGs are monochrome black; invert them on dark themes so they
+   remain readable on the transparent background. */
+[data-theme="dracula"] pre.tikz svg {
+  filter: invert(1) hue-rotate(180deg);
+}
+
+@media (prefers-color-scheme: dark) {
+  :root:not([data-theme="light"]) pre.tikz svg {
+    filter: invert(1) hue-rotate(180deg);
+  }
+}
+
+.tikz-loading {
+  opacity: 0.6;
+  font-style: italic;
+}
+
+.svg-download-host {
+  position: relative;
+  display: inline-block;
+  max-width: 100%;
+}
+
+.svg-download-buttons {
+  position: absolute;
+  top: 0.25rem;
+  right: 0.25rem;
+  display: flex;
+  gap: 0.25rem;
+  opacity: 0;
+  transition: opacity 150ms ease-in-out;
+  pointer-events: none;
+  z-index: 2;
+}
+
+.svg-download-host:hover .svg-download-buttons,
+.svg-download-host:focus-within .svg-download-buttons {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.svg-download-button {
+  font-size: 0.7rem;
+  padding-inline: 0.4rem;
+  height: 1.5rem;
+  min-height: 1.5rem;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.2rem;
+}
+
+.svg-download-button .icon-tabler-download {
+  width: 0.9rem;
+  height: 0.9rem;
+  max-width: none;
+  filter: none;
+}
+
+.tikz-error {
+  border-left: 3px solid var(--color-error);
+  padding: 0.5rem 0.75rem;
+  background: color-mix(in srgb, var(--color-error) 10%, transparent);
+  text-align: left;
+}
+
+.tikz-error pre {
+  white-space: pre-wrap;
+  font-size: 0.85em;
+}
+
 .markdown-alert {
   padding: 1rem;
   background-color: #ecf0f1;
@@ -236,3 +340,12 @@ iframe {
 .todo-notes li:has(> input[type="checkbox"]) {
   list-style: none;
 }
+
+.tabs :where(pre):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
+  margin-top: 0;
+  margin-bottom: 0;
+  padding-top: 0.2rem;
+  padding-inline-end: 0.2rem;
+  padding-bottom: 0.2rem;
+  padding-inline-start: 0.2rem;
+}

src/test/setup.ts

@@ -0,0 +1,8 @@
+import { config } from "@vue/test-utils"
+
+config.global.stubs = {
+  "router-link": true,
+  "router-view": true,
+  transition: false,
+  "transition-group": false
+}

src/theme.config.ts

@@ -2,6 +2,6 @@
 // Update these values to change the light and dark themes
 
 export const themeConfig = {
-  light: "garden",
+  light: 'light',
-  dark: "dim"
+  dark: 'dracula'
 }

src/utils/alloy.tmLanguage.json

@@ -0,0 +1,296 @@
+{
+  "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+  "name": "Alloy",
+  "scopeName": "source.als",
+  "patterns": [
+    { "include": "#comments" },
+    { "include": "#declaration" },
+    { "include": "#expression" },
+    { "include": "#built-in" },
+    { "include": "#keywords" },
+    { "include": "#digit" }
+  ],
+  "repository": {
+    "comments": {
+      "patterns": [
+        { "begin": "/\\*", "end": "\\*/", "name": "comment.block.alloy" },
+        { "begin": "//", "end": "\n", "name": "comment.line.double-slash" },
+        { "begin": "--", "end": "\n", "name": "comment.line.double-dash" }
+      ]
+    },
+    "keywords": {
+      "patterns": [
+        { "include": "#define" },
+        { "include": "#modifier" },
+        { "include": "#operator" },
+        { "include": "#control" },
+        { "include": "#variable" }
+      ],
+      "repository": {
+        "define": {
+          "patterns": [
+            { "match": "\\b(sig)\\b", "name": "keyword.language.sig.alloy" },
+            { "match": "\\b(fact)\\b", "name": "keyword.language.fact.alloy" },
+            { "match": "\\b(pred)\\b", "name": "keyword.language.pred.alloy" },
+            { "match": "\\b(fun)\\b", "name": "keyword.language.fun.alloy" },
+            {
+              "match": "\\b(module)\\b",
+              "name": "keyword.language.module.alloy"
+            },
+            {
+              "match": "\\b(extends)\\b",
+              "name": "keyword.language.extends.alloy"
+            },
+            { "match": ":", "name": "keyword.other.colon.alloy" },
+            {
+              "match": "\\b(check)\\b",
+              "name": "keyword.language.check.alloy"
+            },
+            {
+              "match": "\\b(assert)\\b",
+              "name": "keyword.language.assert.alloy"
+            },
+            { "match": "\\b(run)\\b", "name": "keyword.language.run.alloy" },
+            { "match": "\\b(open)\\b", "name": "keyword.other.open.alloy" },
+            { "match": "\\b(as)\\b", "name": "keyword.other.as.alloy" },
+            { "match": "\\b(in)\\b", "name": "keyword.other.in.alloy" }
+          ]
+        },
+        "modifier": {
+          "patterns": [
+            { "match": "\\b(var)\\b", "name": "keyword.modifier.var.alloy" },
+            {
+              "match": "\\b(private)\\b",
+              "name": "keyword.modifier.private.alloy"
+            },
+            {
+              "match": "\\b(abstract)\\b",
+              "name": "keyword.modifier.abstract.alloy"
+            },
+            {
+              "match": "\\b(all|disj|lone|no|one|set|seq|some|sum|univ|none)\\b",
+              "name": "keyword.modifier.set.alloy"
+            }
+          ]
+        },
+        "operator": {
+          "patterns": [
+            { "include": "#temporal" },
+            { "include": "#unary" },
+            { "include": "#binary" }
+          ],
+          "repository": {
+            "temporal": {
+              "patterns": [
+                {
+                  "match": "\\b(always|eventually|after|before|historically|once|prev)\\b",
+                  "name": "keyword.operator.temporal.unary.alloy"
+                },
+                {
+                  "match": "\\b(until|releases|since|triggered)\\b",
+                  "name": "keyword.operator.temporal.binary.alloy"
+                }
+              ]
+            },
+            "unary": {
+              "patterns": [
+                {
+                  "match": "!|#|~|\\*|\\^|(\\b(not)\\b)",
+                  "name": "keyword.operator.unary.alloy"
+                }
+              ]
+            },
+            "binary": {
+              "patterns": [
+                {
+                  "match": "(?:\\|\\|)|&&|<=>|=>|&|\\+|-|\\+\\+|<:|:>|\\.|=|->",
+                  "name": "keyword.operator.binary.alloy"
+                },
+                {
+                  "match": "\\b(and|or|iff|implies|else|in)\\b",
+                  "name": "keyword.operator.binary.alloy"
+                },
+                {
+                  "match": "=|<|>|=<|>=",
+                  "name": "keyword.operator.binary.alloy"
+                },
+                { "match": ",", "name": "keyword.other.comma.alloy" },
+                { "match": "\\|", "name": "keyword.other.split.alloy" }
+              ]
+            }
+          }
+        },
+        "variable": {
+          "patterns": [
+            { "match": "\\b(let)\\b", "name": "keyword.language.let.alloy" },
+            { "match": "\\b(this)\\b", "name": "keyword.language.this.alloy" }
+          ]
+        },
+        "control": {
+          "patterns": [
+            { "match": "\\b(for)\\b", "name": "keyword.control.for.alloy" },
+            { "match": "\\b(but)\\b", "name": "keyword.control.but.alloy" },
+            {
+              "match": "\\b(exactly)\\b",
+              "name": "keyword.control.exactly.alloy"
+            },
+            {
+              "match": "\\b(expect)\\b",
+              "name": "keyword.control.expect.alloy"
+            },
+            { "match": "\\b(steps)\\b", "name": "keyword.control.steps.alloy" }
+          ]
+        }
+      }
+    },
+    "declaration": {
+      "patterns": [
+        { "include": "#module" },
+        { "include": "#predict" },
+        { "include": "#signature" },
+        { "include": "#fact" },
+        { "include": "#fun" }
+      ],
+      "repository": {
+        "module": {
+          "patterns": [
+            {
+              "match": "(module)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+              "captures": {
+                "1": { "name": "keyword.language.module.alloy" },
+                "2": { "name": "support.class.module.alloy" }
+              }
+            }
+          ]
+        },
+        "predict": {
+          "patterns": [
+            {
+              "match": "(pred)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+              "captures": {
+                "1": { "name": "keyword.language.pred.alloy" },
+                "2": { "name": "entity.name.function.pred.alloy" }
+              }
+            }
+          ]
+        },
+        "signature": {
+          "patterns": [
+            {
+              "begin": "(abstract)?\\s*(lone|some|one)?\\s*(var)?\\s*(sig)\\b\\s*",
+              "end": "(?=\\{)",
+              "beginCaptures": {
+                "1": { "name": "keyword.modifier.abstract.alloy" },
+                "2": { "name": "keyword.modifier.set.alloy" },
+                "3": { "name": "keyword.modifier.var.alloy" },
+                "4": { "name": "keyword.language.sig.alloy" }
+              },
+              "patterns": [
+                {
+                  "begin": "(extends)",
+                  "end": "(?=\\{)",
+                  "beginCaptures": {
+                    "1": { "name": "keyword.language.extends.alloy" }
+                  },
+                  "patterns": [
+                    {
+                      "match": "(?:\\w|'|_|\\d|/)+",
+                      "name": "entity.other.inherited-class.alloy"
+                    }
+                  ]
+                },
+                {
+                  "begin": "(in)",
+                  "end": "(?=\\{)",
+                  "beginCaptures": {
+                    "1": { "name": "keyword.other.in.alloy" }
+                  },
+                  "patterns": [
+                    {
+                      "match": "(?:\\w|'|_|\\d|/)+",
+                      "name": "entity.other.inherited-class.alloy"
+                    },
+                    { "match": "\\+", "name": "keyword.operator.binary.alloy" }
+                  ]
+                },
+                {
+                  "match": "(?:\\w|'|_|\\d|/)+",
+                  "name": "entity.name.type.signature.alloy"
+                },
+                { "match": ",", "name": "keyword.other.comma.alloy" }
+              ]
+            }
+          ]
+        },
+        "fact": {
+          "patterns": [
+            {
+              "match": "(fact)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+              "captures": {
+                "1": { "name": "keyword.language.fact.alloy" },
+                "2": { "name": "entity.name.function.fact.alloy" }
+              }
+            }
+          ]
+        },
+        "fun": {
+          "patterns": [
+            {
+              "match": "(fun)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+              "captures": {
+                "1": { "name": "keyword.language.fun.alloy" },
+                "2": { "name": "entity.name.function.fun.alloy" }
+              }
+            }
+          ]
+        }
+      }
+    },
+    "expression": {
+      "patterns": [
+        {
+          "match": "(check)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+          "captures": {
+            "1": { "name": "keyword.language.check.alloy" },
+            "2": { "name": "entity.name.function.check.alloy" }
+          }
+        },
+        {
+          "match": "(assert)\\b\\s*((?:\\w|'|_|\\d|/)+)",
+          "captures": {
+            "1": { "name": "keyword.language.assert.alloy" },
+            "2": { "name": "entity.name.function.check.alloy" }
+          }
+        }
+      ]
+    },
+    "digit": {
+      "patterns": [
+        { "match": "\\b(\\d+)\\b", "name": "constant.numeric.alloy" }
+      ]
+    },
+    "built-in": {
+      "patterns": [
+        {
+          "match": "\\b(plus|minus|mul|div|rem|sum)\\[",
+          "captures": { "1": { "name": "support.function.numeric.alloy" } }
+        },
+        {
+          "match": "\\b(open)\\b\\s*((?:\\w|'|_|\\d|/)+)\\[",
+          "captures": {
+            "1": { "name": "keyword.other.open.alloy" },
+            "2": { "name": "support.class.module.alloy" }
+          }
+        },
+        {
+          "match": "(/(?:\\w|'|_|\\d|/)+)",
+          "captures": { "1": { "name": "support.function.order.alloy" } }
+        },
+        {
+          "match": "((?:\\w|'|_|\\d)+)\\s*\\[",
+          "captures": { "1": { "name": "support.function.order.alloy" } }
+        }
+      ]
+    }
+  }
+}

src/utils/decodeBase64ToUTF8.spec.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from "vitest"
+
+import { decodeBase64ToUTF8, encodeUTF8ToBase64 } from "./decodeBase64ToUTF8"
+
+describe("base64 ↔ UTF-8 round-trip", () => {
+  it.each([
+    ["ASCII", "Hello, world!"],
+    ["multi-byte UTF-8", "Café résumé naïve"],
+    ["CJK characters", "こんにちは世界"],
+    ["emoji", "👋 🌍 🎉"],
+    ["empty string", ""],
+    ["newlines and whitespace", "line1\nline2\tend"],
+    ["markdown content", "# Title\n\n- [[link]]\n- **bold**"]
+  ])("round-trips %s", (_label, input) => {
+    expect(decodeBase64ToUTF8(encodeUTF8ToBase64(input))).toBe(input)
+  })
+
+  it("encodes ASCII to standard base64", () => {
+    expect(encodeUTF8ToBase64("hi")).toBe("aGk=")
+  })
+
+  it("decodes standard base64 to ASCII", () => {
+    expect(decodeBase64ToUTF8("aGk=")).toBe("hi")
+  })
+})

src/utils/displayLanguage.spec.ts

@@ -0,0 +1,38 @@
+import { afterEach, describe, expect, it, vi } from "vitest"
+
+import { displayLanguage } from "./displayLanguage"
+
+describe("displayLanguage", () => {
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns null when no language code is given", () => {
+    expect(displayLanguage()).toBeNull()
+    expect(displayLanguage("")).toBeNull()
+  })
+
+  it("returns a human-readable name for a known language code", () => {
+    expect(displayLanguage("en")).toMatch(/^English/i)
+  })
+
+  it("works for French", () => {
+    expect(displayLanguage("fr")).toBeTruthy()
+  })
+
+  it("returns null and logs a warning when Intl.DisplayNames throws", () => {
+    const warn = vi.spyOn(console, "warn").mockImplementation(() => {})
+    const original = Intl.DisplayNames
+    // Force the constructor to throw
+    ;(Intl as unknown as { DisplayNames: unknown }).DisplayNames = function () {
+      throw new Error("boom")
+    }
+
+    try {
+      expect(displayLanguage("en")).toBeNull()
+      expect(warn).toHaveBeenCalled()
+    } finally {
+      ;(Intl as unknown as { DisplayNames: unknown }).DisplayNames = original
+    }
+  })
+})