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docs(nix): note FlakeHub is not used (no useful free tier) #49

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JacobPEvans-personal merged 1 commit into from
May 31, 2026
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docs(nix): note FlakeHub is not used (no useful free tier) #49

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6 changes: 6 additions & 0 deletions nix/overview.mdx
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Expand Up @@ -57,6 +57,12 @@ The boundary between system, user, and project is intentional:

`programs.*` declarations follow the same boundary; home-manager merges both layers cleanly.

## Continuous integration

Nix CI runs through shared reusable workflows — `_nix-validate.yml` for `nix flake check` and `_nix-build.yml` for macOS builds — so every repo validates the same way. Caching uses the GitHub Actions cache (`actions/cache`) backed by the public `cache.nixos.org` binary cache.

These workflows do **not** use FlakeHub. FlakeHub's hosted binary cache no longer offers a useful free tier, so there is nothing to gain from it — and a FlakeHub-backed cache action fails CI outright when it cannot authenticate to `api.flakehub.com`. The Determinate Systems **Nix installer** (`determinate-nix-action`) and the Determinate Nix module stay in use: both are free and independent of the FlakeHub cache.

## Repos in this section

<CardGroup cols={2}>
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