a700412773
New docs/notes/sync-latency.md breaks down the measured ~16 s cold :sync (Wi-Fi + SNTP + one TLS push), explains the optimistic-retry handshake saving, the reconcile/last-writer-wins semantics, and why the rest is near the protocol floor. Linked from the notes index, the docs index, and the Git row of the root README.
Docs
The design record for Typoena — the decisions, specs, and bench write-ups behind the writing appliance. Start with the ADRs for the load-bearing choices, or the v0.1 specs for what the first release actually does.
Project overview:
../README.md.
Decisions & specs
| Doc | What's in it |
|---|---|
adr.md |
Architecture Decision Records — the load-bearing technical choices and why. |
v0.1-mvp-product.md |
v0.1 product design — boot, type one file, Ctrl-S to save, Ctrl-G to publish. |
v0.1-mvp-technical.md |
v0.1 technical design — single Rust binary on esp-idf-rs, modules, threads, bring-up order. |
roadmap.md |
Version-by-version plan; each release is a usable artifact, not a checkpoint. |
hardware.md |
Part choices for the bench build and the rationale behind them. |
Quality method
| Doc | What's in it |
|---|---|
qfd.md |
Quality Function Deployment — turns user-facing requirements into technical HOWs. |
quality-house.md |
The 14 WHATs × 14 HOWs House of Quality, filled in. |
quality-house-empty.md |
The same chassis, blank — for re-scoring from scratch. |
Bench work
| Area | What's in it |
|---|---|
spikes.md |
Rendering & UX spikes — display/UX risks proved outside the hardware stack. |
postmortems/ |
Bring-up debugging write-ups: what broke, the root cause, and the decisions that came out of it. |
notes/ |
Longer-form essays on the thinking behind specific choices — e.g. where the ~16 s cold :sync goes. |
tradeoff-curves/ |
Cost-vs-knob curves behind chosen defaults — energy, latency, memory. |