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feat(nix): add Cachix binary cache to CI #1237

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feat(nix): add Cachix binary cache to CI #1237

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2339d96
feat(nix): add Cachix binary cache to CI
max-miller1204 Apr 6, 2026
9f80d6c
style: fix prettier formatting in nix-check.yml
max-miller1204 Apr 15, 2026
c6239d0
fix(nix): use correct cache name 'handy-computer'
max-miller1204 Apr 15, 2026
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9 changes: 6 additions & 3 deletions .github/workflows/nix-check.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
# so compilation-breaking edits are caught by flake eval.
# 2. Full nix build (~25 min) only runs when nix packaging files change.
#
# Setting up a Cachix binary cache would further reduce full-build times.
# Build artifacts are pushed to Cachix so Nix users can skip local compilation.

name: "nix build check"
on:
Expand Down Expand Up @@ -48,7 +48,10 @@ jobs:
with:
nix_path: nixpkgs=channel:nixos-unstable

- uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13
- uses: cachix/cachix-action@v15
with:
name: handy
authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
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@VirenMohindra VirenMohindra Apr 8, 2026

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should add this before we merge it in


# Regenerate .nix/bun.nix from bun.lock and check if it matches
# what's committed. A diff means the developer forgot to run
Expand Down Expand Up @@ -121,7 +124,7 @@ jobs:
# sandbox issues, compilation failures) that flake eval alone misses.
# On PRs: only runs when nix packaging files change (~25 min with cold cache).
# On push to main and workflow_dispatch: always runs so every commit on
# main has a verified nix build before release.
# main has a verified nix build. cachix-action auto-pushes artifacts.
- name: Build handy
if: steps.bun-check.outputs.outdated != 'true' && steps.eval.outputs.failed != 'true' && (steps.nix-files.outputs.changed == 'true' || github.event_name == 'workflow_dispatch' || github.event_name == 'push')
run: nix build .#handy -L --show-trace
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