Lucas Berger
982438dc10
Mechanical reformat — no logic changes. 398 files changed, 19125 insertions(+), 16457 deletions(-). Prettier 3.8.4 with .prettierrc (singleQuote:true, semi:true, tabWidth:2, trailingComma:all, printWidth:100). Isolated per D-13-08 for reviewability.
4.4 KiB
4.4 KiB
Project Retrospective
A living document updated after each milestone. Lessons feed forward into future planning.
Milestone: v1.0 — MVP
Shipped: 2026-06-10 Phases: 6 | Plans: 42 | Sessions: not tracked
What Was Built
- Unified color-coded Fastmail calendar (shared + personal) with full event CRUD written back via CalDAV — read views, recurrence/DST expansion, all-day, and an enqueue-only outbox write path.
- Installable React PWA behind Authelia OIDC, taken live over Pangolin/Newt and verified end-to-end on desktop and iOS.
- Shared collaborative lists with real-time SSE co-edit sync, and VAPID Web Push for reminders / event-change / list alerts.
What Worked
- Dev-auth bypass to build behind a deferred gate (D-14): Phases 2–3 were built against a documented bypass while live Authelia/Pangolin infra wasn't ready, with no rework when Gate 2 finally ran live in Phase 3.
- Wave-based parallel plans within phases kept large phases (Phase 3 = 12 plans) moving.
- Enqueue-only outbox with optimistic 202 cleanly separated request handling from the slow CalDAV write, and made create-before-delete ordering + etag/412 handling tractable.
What Was Inefficient
- A long tail of bugs only reproduced under live conditions (Newt MTU blackhole, OIDC state-cookie race, write-path timezone/identity/join/cache bugs, all-day off-by-one, color collisions, silent Android notifications, session-cookie expiry). Building behind the bypass too long delayed their discovery — they all surfaced at once during live bring-up.
- Background workers silently failed: node-cron 4.2.1 skipped every scheduled tick in the long-lived API process, so reminders/poller/outbox never fired on schedule — caught late, during Phase 5 UAT, not by tests.
- Repeated mobile-only defects could only be found by the operator on real devices because the test harness is desktop-Chromium and the prod PWA is behind OIDC (→ backlog 999.12).
Patterns Established
setInterval, not node-cron, for in-process schedulers (node-cron silently no-ops in a long-lived process). Do not reintroduce node-cron.- drizzle-kit
generate+migrate, neverpush, on MariaDB —pushemits a false destructive (truncate) diff against populated MariaDB. - iOS-Safari standalone behavior is a human/device checkpoint, not a playwright-cli check — keep those as explicit manual gates.
- Run
tsc --noEmit(both apps) in the post-merge gate — esbuild strips types so vitest stays green while tsc fails.
Key Lessons
- Bring the real external topology (auth + tunnel) up early and behind a small reversible config, rather than deferring all live verification — the live-only bug class is large and clusters at first contact.
- Long-running Node schedulers need an integration-level "does it actually fire on a tick" check; unit tests pass while the scheduler silently does nothing.
- Push has hard platform footguns (iOS revokes after 3 silent pushes; standalone install mandatory; VAPID key truncation = silent Apple 403) — encode them as guards from day one, not after a missed notification.
Cost Observations
- Model mix: not tracked
- Sessions: not tracked
- Notable: TDD red→green discipline is visible in commit history, but per-commit
gate_status:trailers were never emitted across the milestone — the ship-time TDD audit had nothing structured to aggregate. Wire gate_status trailers in v1.x if the audit is wanted.
Cross-Milestone Trends
Process Evolution
| Milestone | Sessions | Phases | Key Change |
|---|---|---|---|
| v1.0 | n/a | 6 | Established GSD plan→execute→verify→ship→complete loop; dev-auth bypass for gated infra; milestone-branch + Gitea PR shipping |
Cumulative Quality
| Milestone | Tests | Coverage | Zero-Dep Additions |
|---|---|---|---|
| v1.0 | PWA 191 + API broker/events 114 green | not measured | n/a |
Top Lessons (Verified Across Milestones)
- (pending second milestone to cross-validate)