Mikkel Georgsen d2a038f562 docs(01-05): complete build sandbox plan

Tasks completed: 3/3
- Create sandbox setup script and sandbox service
- Create deterministic build configuration service
- Create build orchestration service

SUMMARY: .planning/phases/01-core-infrastructure-security/01-05-SUMMARY.md

2026-01-25 20:22:17 +00:00

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Project State

Project Reference

See: .planning/PROJECT.md (updated 2026-01-25)

Core value: Make Linux customization visual and accessible to people who aren't Linux experts Current focus: Phase 1 - Core Infrastructure & Security

Current Position

Phase: 1 of 9 (Core Infrastructure & Security) Plan: 5 of 5 in current phase Status: Phase complete Last activity: 2026-01-25 - Completed 01-05-PLAN.md

Progress: [█████░░░░░] 11%

Performance Metrics

Velocity:

Total plans completed: 5
Average duration: 4 min
Total execution time: 20 min

By Phase:

Phase	Plans	Total	Avg/Plan
01	5	20 min	4 min

Recent Trend:

Last 5 plans: 01-01 (3 min), 01-02 (6 min), 01-03 (3 min), 01-04 (4 min), 01-05 (4 min)
Trend: Stable

Updated after each plan completion

Accumulated Context

Decisions

Decisions are logged in PROJECT.md Key Decisions table. Recent decisions affecting current work:

[Roadmap]: 9-phase structure following research recommendations - infrastructure first, then backend systems, then user features, then polish
[01-01]: Used hatchling as build backend for pyproject.toml
[01-01]: Created root /health endpoint outside versioned API for simple health checks
[01-02]: Port 5433 for PostgreSQL (5432 in use by another container)
[01-02]: Connection pool settings from research: pool_size=10, max_overflow=20, pool_recycle=1800
[01-03]: Security headers applied via custom middleware (Starlette @app.middleware pattern)
[01-03]: Health endpoints exempt from rate limiting via @limiter.exempt decorator
[01-03]: CSRF validation available as optional dependency injection pattern
[01-05]: SOURCE_DATE_EPOCH derived from config hash (not wall clock) for deterministic builds
[01-05]: 20 minute hard timeout for sandbox builds (15 min warning)
[01-05]: Resource limits: 8GB RAM, 4 cores for builds (speed over concurrency)

Pending Todos

None yet.

Blockers/Concerns

Phase 1 complete:

systemd-nspawn sandbox implemented with network isolation
Deterministic builds verified with SOURCE_DATE_EPOCH and fixed locales

Phase 7 readiness:

3D visualization requires 60fps target on Intel UHD Graphics - may need early performance prototyping

Phase 8 readiness:

SAT solver integration complexity is high - research phase recommended before planning

Session Continuity

Last session: 2026-01-25T20:21:28Z Stopped at: Completed 01-05-PLAN.md (Phase 1 complete) Resume file: None

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