- Remove dead overlays/default.nix (flake defines overlays inline)
- Remove orphaned overlays/mods/{beads,n8n}.nix (never imported)
- Remove docs/packages/notesmd-cli.md (package doesn't exist)
- Extract externalSkills submodule to shared-options.nix (eliminates
~100 lines of duplication across opencode/claude-code/pi modules)
- Fix lib output: use nixpkgs.lib directly instead of instantiating
a full nixpkgs just to get lib
- Add lib unit tests to flake checks
- Update stale comment in coding-rules.nix
- Remove --use-update-script flag that breaks with flake-only repos
(nix-update-script expects default.nix at repo root)
- Fix GitHub API jq filter for detecting prereleases
- Fix Summary step bash syntax for handling input variables
- Format lib/ files that were failing formatting check
- Create lib/opencode-rules.nix with mkOpencodeRules function
- Update lib/default.nix to import opencode-rules module
- Pattern follows ports.nix: {lib}: { mkOpencodeRules = ...; }
Refs: T2, T3 of rules-system plan
