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docs: redesign v0.1 screen as side panel + writing column

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Replace the header/status-bar layout with a full-height writing column
plus an always-visible side panel holding all metadata. Canonicalize the
new region vocabulary in CONTEXT.md (Writing column, Side panel) and retire
header / status line / edit area as terms-to-avoid.

Consequent sweeps: rewrite the Error UX section in side-panel terms and
give keyboard-disconnect a home (⌨ ✗, disconnect-only); drop the "line N"
readout; reconcile the render module ops and region shadow; sweep the
status-line/edit-area wording across the technical, roadmap, qfd, notes,
README, and ADR-003 docs (incl. the ~11→~13 line-count figure).
This commit is contained in:
Julien Calixte
2026-07-05 17:27:25 +02:00
parent d3fd6f6ed1
commit a848c05afa
8 changed files with 100 additions and 61 deletions
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README.md
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@@ -36,7 +36,7 @@ the remote) is offered.
| Part | Choice | Why |
| --------- | ------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| MCU | **ESP32-S3-N16R8** (16 MB flash, 8 MB octal PSRAM) | USB OTG host (for the keyboard), Wi-Fi, BLE, dual core @ 240 MHz, plenty of PSRAM for git pack data and screen buffer. Best-supported Rust target in the ESP family. |
| Display | **GDEY0579T93 + DESPI-c579 breakout** (5.79", 792×272, 1-bit) | Good Display panel matched with its own FPC breakout. Strip aspect (~2.9:1) — Freewrite-coded: ~12 lines of edit area, ~95 cols. Tiny framebuffer (~27 KB) leaves PSRAM headroom. The DESPI-c579 is a passive level-shifter / FPC-to-header board, not an active controller — driven over plain SPI like any other epd. |
| Display | **GDEY0579T93 + DESPI-c579 breakout** (5.79", 792×272, 1-bit) | Good Display panel matched with its own FPC breakout. Strip aspect (~2.9:1) — Freewrite-coded: ~13 lines, ~79 cols at the editor's 10px font. Tiny framebuffer (~27 KB) leaves PSRAM headroom. The DESPI-c579 is a passive level-shifter / FPC-to-header board, not an active controller — driven over plain SPI like any other epd. |
| Keyboard | **Nuphy Air60/Halo65 wired USB-C** | ESP32-S3 acts as USB host via TinyUSB. BLE-HID is a fallback but contends with Wi-Fi for radio time during push. |
| Storage | microSD over SPI | Holds both the git working copy (`/sd/repo/`) **and** the local-only scratch space (`/sd/local/`). Internal flash is for firmware + config only. |
| Power | **USB-C wall power for MVP**, 18650 + IP5306 in Phase 3 | Measure power profile on real hardware before sizing the battery. E-ink + sleep should give multi-day battery life but battery introduces charging, safety, and BMS complexity we don't need on day one. |
@@ -147,7 +147,7 @@ gantt
| [v0.1](docs/roadmap.md#v01--mvp-it-writes-it-pushes--) | MVP | Boots, edits one file, `Ctrl-G` pushes. |
| [v0.2](docs/roadmap.md#v02--vim-navigation--) | Vim nav | Normal/Insert, motions, line numbers. |
| [v0.3](docs/roadmap.md#v03--vim-editing--) | Vim edit | `dd yy p`, undo/redo, counts. |
| [v0.4](docs/roadmap.md#v04--visual-mode--ex-commands--) | Visual + ex | `v V`, `:w :q :e`, status line. |
| [v0.4](docs/roadmap.md#v04--visual-mode--ex-commands--) | Visual + ex | `v V`, `:w :q :e` command line. |
| [v0.5](docs/roadmap.md#v05--file-palette--multi-file--) | Files | `Ctrl-P` over `/repo` + `/local`, buffers. |
| [v0.6](docs/roadmap.md#v06--markdown-affordances--) | Markdown | Headings, list continuation, soft-wrap. |
| [v0.7](docs/roadmap.md#v07--search--better-git--) | Search + git | `/`, `:Gpull`, `:Gbranch`. |