refactor(flakes): define the nixpkgs channel once in channels/ (26.05 + DRY)#40
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refactor(flakes): define the nixpkgs channel once in channels/ (26.05 + DRY)#40JacobPEvans-personal wants to merge 1 commit into
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…hells follow it A new channels/ pin flake holds the nixpkgs channel in ONE place (nixpkgs-26.05-darwin). The root flake and all 13 shells now declare channels.url = "path:./channels" (or ../../channels) + nixpkgs.follows = "channels/nixpkgs" instead of each repeating the channel string. nix forbids variables in `inputs`, so following a tiny pin flake is the nix-native "define once, inherit everywhere". - Isolated locks preserved (~2 nodes per mkShell shell); the ?dir=shells/X interface is unchanged, so no consumer .envrc changes are needed. - Future channel bumps = one-line edit in channels/flake.nix + lockfile-only relocks (Renovate-able), not the same string edited in 13+ files. - templates/ left as standalone scaffolds (their pins are intentional examples). Assisted-by: Claude:claude-opus-4-8
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What
Pins the nixpkgs channel in one place and has every shell follow it, instead of repeating
nixpkgs.url = "...nixpkgs-26.05-darwin"in 13+ flakes. (Replaces this PR's original 20-identical-edits diff.)channels/flake.nixholds the channel once → nixpkgs-26.05-darwin (moves OpenTofu 1.10.9 → 1.11.8).channels.url = "path:./channels"(or../../channels) +nixpkgs.follows = "channels/nixpkgs".inputs, so following a tiny pin flake is the nix-native 'define once, inherit everywhere'.No consumer churn / isolation preserved
?dir=shells/Xinterface is unchanged — no.envrcedits in any of the ~15 consumer repos. Verifiednix develop …?dir=shells/terraform -c tofu version→OpenTofu v1.11.8.templates/*left as standalonenix flake initscaffolds (their pins are intentional examples).Future bumps
One-line edit in
channels/flake.nix+ lockfile-only relocks (Renovate-able) — no more editing the same string in every shell.Verification
nix flake check→ green.?dir=shells/terraform→ tofu 1.11.8;?dir=shells/ansiblebuilds ansible-core 2.21.0 (26.05); ai-dev metadata showsnixpkgs follows channels/nixpkgs.channels/flake.nix.🤖 Generated with Claude Code