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docs: record Spike 7 outcome, gix HTTPS-push kill-switch fired

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Postmortem + ADR-004 outcome note + risk-table update: gitoxide has no
HTTP(S) push, so v0.1 falls back to libgit2; the on-device libgit2 <->
mbedtls cross-compile is the next gate.
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Julien Calixte
2026-07-05 19:38:48 +02:00
parent 12417a9be7
commit 9c9ad63793
4 changed files with 137 additions and 1 deletions
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docs/v0.1-mvp-technical.md
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@@ -316,7 +316,7 @@ Mirrored as live conflicts in
| Risk | Symptom we'd see | Fallback |
| ---------------------------------------------------------- | ------------------------------------- | -------------------------------------------------------------------------- |
| `gix` smart-HTTP push doesn't work on `esp-idf-rs` mbedtls | spike 7 fails | switch to `libgit2-sys` (C, well-trodden) for v0.1 only |
| ~~`gix` smart-HTTP push doesn't work on `esp-idf-rs` mbedtls~~ **fired 2026-07-05**: gix has no HTTP(S) push at all (only `file://`/`ssh://`) | spike 7 (desktop) | **switched to `libgit2` (`git2`)** — mechanics proven on desktop; on-device libgit2/mbedtls cross-compile is the new gate. See [postmortem](postmortems/2026-07-05-spike7-gix-https-push.md). |
| TinyUSB host drops HID reports under load | dropped keystrokes during fast typing | enable larger USB rx buffer; if still bad, fall back to BLE-HID for v0.1 |
| EPD partial refresh slower than 200 ms | typing feels laggy | reduce font size to shrink dirty area; or render multi-char bursts |
| TLS heap pressure on PSRAM | OOM during push | tune mbedtls to smaller cipher suites; force GC of glyph cache before push |