kimai-plugin-heatmap/.planning/phases/01-dev-environment/01-01-SUMMARY.md
Christopher Mühl 64dd0a98f3
docs(01-01): complete nix flake and dev infrastructure plan
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-08 11:13:40 +02:00

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---
phase: 01-dev-environment
plan: 01
subsystem: infra
tags: [nix, flake, process-compose, mariadb, symfony-cli, devshell]
requires:
- phase: none
provides: first plan
provides:
- Nix devshell with PHP 8.2, Composer, Node 22, MariaDB 11.4, symfony-cli, process-compose
- process-compose config for MariaDB + Kimai dev server
- One-command bootstrap script (dev/setup.sh)
affects: [01-02, all subsequent phases]
tech-stack:
added: [nix flake, process-compose, mariadb 11.4, php 8.2, symfony-cli]
patterns: [local dev via nix devshell, process-compose for multi-service]
key-files:
created:
- flake.nix
- dev/process-compose.yaml
- dev/setup.sh
- .envrc
- .gitignore
modified: []
key-decisions:
- "x86_64-linux only (no flake-utils eachDefaultSystem) since this is NixOS-only"
- "MariaDB 11.4.9 with skip-grant-tables for zero-friction local dev"
- "Port 3307 for MariaDB, 8010 for Kimai to avoid conflicts"
- "Kimai 2.52.0 pinned via shallow git clone"
patterns-established:
- "Dev infrastructure lives in dev/ directory"
- "process-compose manages local services from project root"
requirements-completed: [DEV-01]
duration: 2min
completed: 2026-04-08
---
# Plan 01-01: Nix Flake and Dev Infrastructure Summary
**Nix devshell with PHP 8.2, MariaDB 11.4, Node 22, process-compose orchestration, and Kimai bootstrap script**
## Performance
- **Duration:** 2 min
- **Started:** 2026-04-08T09:10:30Z
- **Completed:** 2026-04-08T09:12:45Z
- **Tasks:** 2
- **Files modified:** 5
## Accomplishments
- Nix flake providing PHP 8.2.30, Composer 2.9.5, Node 22.22.2, MariaDB 11.4.9, symfony-cli 5.16.1, process-compose 1.94.0
- process-compose config with MariaDB health checks and Kimai server dependency ordering
- Idempotent setup script that clones Kimai 2.52.0, installs deps, seeds data, and symlinks the plugin
## Task Commits
1. **Task 1: Create Nix flake with devshell** - `cc5a25e` (feat)
2. **Task 2: Create process-compose config and setup script** - `b20e61e` (feat)
## Files Created/Modified
- `flake.nix` - Nix devshell with all required packages and PHP extensions
- `flake.lock` - Pinned nixpkgs input
- `.envrc` - direnv integration (use flake)
- `.gitignore` - Excludes dev artifacts, node_modules, vendor, .direnv
- `dev/process-compose.yaml` - MariaDB + Kimai process definitions with health checks
- `dev/setup.sh` - One-time Kimai bootstrap (clone, install, seed, symlink)
## Decisions Made
- Used x86_64-linux only instead of eachDefaultSystem -- this is a NixOS-only project
- MariaDB binds to 127.0.0.1:3307 with skip-grant-tables for frictionless local dev
- Kimai dev server on port 8010 to avoid conflicts
- ServerVersion in DATABASE_URL set to 11.4.9-MariaDB matching actual installed version
## Deviations from Plan
None - plan executed exactly as written.
## Issues Encountered
None.
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- Dev tooling is ready; Plan 01-02 can proceed to run setup.sh and verify plugin scaffold
- All tools verified working via `nix develop`
---
*Phase: 01-dev-environment*
*Completed: 2026-04-08*