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feat: migrate to dendritic pattern with flake-parts #1

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bryan merged 21 commits from dendritic-migration into main 2026-01-28 15:37:29 +00:00
Conversation 2 Commits 21 Files changed 47 +1962 -1920
bryan commented 2026-01-27 22:29:52 +00:00
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Summary

Migrates nix-configs from host-centric to feature-centric (dendritic) architecture using flake-parts.

Changes

  • flake.nix now uses flake-parts.lib.mkFlake with import-tree auto-importing
  • All configurations organized by feature instead of by host
  • Darwin + NixOS aspects coexist in same module files
  • Cursor package references removed (dead code cleanup)

New Structure

modules/
├── base/ (fonts, nix-settings, zsh, homebrew)
├── dev/ (editors, git, cli-tools)
├── services/ (ollama, open-webui, monitoring, smb-mount)
├── desktop/ (gnome, gaming, audio)
├── hosts/ (mbp, a6mbp, studio, gnarbox)
└── dev-envs/ (vets-website, vets-api, etc.)

Verification

  • ✅ All 4 hosts build
  • ✅ All 5 dev-envs work
  • ✅ nix flake check passes

Tag: v2.0.0-dendritic

## Summary Migrates nix-configs from host-centric to feature-centric (dendritic) architecture using flake-parts. ### Changes - flake.nix now uses flake-parts.lib.mkFlake with import-tree auto-importing - All configurations organized by feature instead of by host - Darwin + NixOS aspects coexist in same module files - Cursor package references removed (dead code cleanup) ### New Structure modules/ ├── base/ (fonts, nix-settings, zsh, homebrew) ├── dev/ (editors, git, cli-tools) ├── services/ (ollama, open-webui, monitoring, smb-mount) ├── desktop/ (gnome, gaming, audio) ├── hosts/ (mbp, a6mbp, studio, gnarbox) └── dev-envs/ (vets-website, vets-api, etc.) ### Verification - ✅ All 4 hosts build - ✅ All 5 dev-envs work - ✅ nix flake check passes - Tag: v2.0.0-dendritic
Removes all cursor package references from the codebase:
- Remove cursor overlay from mkPkgs in flake.nix
- Remove packages.x86_64-linux.cursor export from flake.nix
- Remove cursor overlay from nixosConfigurations in flake.nix
- Remove cursor from homebrew.casks in hosts/a6mbp.nix
- Remove cursor references from README.md
- Delete pkgs/cursor/ directory (dead code with no default.nix)

All builds verified:
- nix flake check: PASS
- darwin-rebuild build --flake '.#mbp': PASS
- darwin-rebuild build --flake '.#a6mbp': PASS
- darwin-rebuild build --flake '.#studio': PASS
- nix build '.#nixosConfigurations.gnarbox.config.system.build.toplevel' --dry-run: PASS
- grep -r 'cursor' --include='*.nix' .: No matches
Create host configuration modules that import feature modules:
- mbp.nix: Personal MacBook with personal apps (Bambu Studio, Steam, etc.)
- a6mbp.nix: Work MacBook with work tools (AWS, Docker, DDEV, Slack, etc.)
- studio.nix: Media server with services (ollama, open-webui, monitoring, smb-mount)
- gnarbox.nix: NixOS desktop with desktop features (gnome, gaming, audio)

Each host module follows the flake-parts pattern with flake.modules.darwin/nixos.<hostname>.
Original hosts/ files remain unchanged for Task 12 cleanup.
Migrate all VA development environments to flake-parts perSystem pattern:
- Copy lib.nix (shared utilities) to modules/dev-envs/
- Wrap vets-website, vets-api, next-build, component-library, content-build
- Each module exports devShells.<name> via perSystem
- All modules validated with nix-instantiate --parse
- Restructure flake.nix to use flake-parts.lib.mkFlake
- Add import-tree to auto-import modules from modules/
- Add modules/_options.nix to declare flake.modules option for merging
- Remove duplicate modules/darwin/services/ (already in modules/services/)
- Rename dev-envs/lib.nix to _lib.nix to exclude from import-tree

All darwin hosts (mbp, a6mbp, studio) and dev shells build successfully.
bryan commented 2026-01-27 22:30:37 +00:00
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Tested on a6mbp successfully

Tested on a6mbp successfully
bryan commented 2026-01-27 23:29:06 +00:00
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Tested on gnarbox successfully

Tested on gnarbox successfully
import-tree auto-imports all .nix files, but hardware-configs use
modulesPath which only exists in NixOS module context, not flake-parts.
bryan force-pushed dendritic-migration from 7633baaa3b to 3644ed3e23 2026-01-28 00:10:05 +00:00 Compare 
- Update README.md with flake-parts + import-tree architecture
- Add studio host documentation (media server with ollama, monitoring)
- Rename Claude Code references to OpenCode throughout
- Add content-build to dev environments list
- Update modules/README.md with accurate file names
- Remove outdated migration status (migration complete)
bryan merged commit 1954bb9604 into main 2026-01-28 15:37:29 +00:00
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