nix: Adopt Determinate Nix as the common Nix

Use Determinate Nix as `nix.package` for systems, homes and the
devshell, for its parallel evaluation and lazy trees. We only take the
package, not `determinate-nixd`: the daemon and `nix.conf` model are
unchanged and the Determinate NixOS module is not imported.

- Add the `determinate-nix` (`nix-src`) input, following our
  `nixpkgs-unstable`. FlakeHub's cache needs auth, so we build it
  ourselves and let it flow through Harmonia like everything else.
- `determinateOverlay` exposes it as `pkgs'.mine.determinate-nix`;
  `lib.my.c.nix.determinateSettings` (`lazy-trees`, `eval-cores = 0`)
  is merged into `nix.settings` and the devshell `nix.conf`.
- Switch CI to `DeterminateSystems/determinate-nix-action` so the
  runner itself evaluates with Determinate.
- Advertise the Harmonia cache via the flake's `nixConfig`, trusted
  without a prompt via `accept-flake-config` in the devshell, `.envrc`
  and CI only (boxes already trust it through `nix.settings`).
- Re-attach `pkgs`/`lib` to container and installer
  `nixosConfigurations` so Determinate's flake schemas can evaluate
  them (`nix flake check` otherwise fails with `attribute 'pkgs'
  missing`).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
2026-08-03 21:07:02 +01:00
parent 1ca978baf4
commit 7fe3c8186c
10 changed files with 208 additions and 16 deletions
Generated
+116
View File
@@ -163,6 +163,29 @@
"type": "github"
}
},
"determinate-nix": {
"inputs": {
"flake-parts": "flake-parts",
"git-hooks-nix": "git-hooks-nix",
"nixpkgs": [
"nixpkgs-unstable"
],
"nixpkgs-23-11": "nixpkgs-23-11",
"nixpkgs-regression": "nixpkgs-regression"
},
"locked": {
"lastModified": 1785428605,
"narHash": "sha256-wfaiSRLM1wDb4MV+NEzbyheK9Y03/oe56NR2I84UF7E=",
"rev": "0ff46631f69584c9f76792cae595ea253bd482c3",
"revCount": 26288,
"type": "tarball",
"url": "https://api.flakehub.com/f/pinned/DeterminateSystems/nix-src/3.21.9/019fb409-4d6e-7243-8a88-23ceee2520e9/source.tar.gz"
},
"original": {
"type": "tarball",
"url": "https://flakehub.com/f/DeterminateSystems/nix-src/%2A"
}
},
"devshell": {
"inputs": {
"flake-utils": "flake-utils",
@@ -256,6 +279,42 @@
"type": "github"
}
},
"flake-compat_2": {
"flake": false,
"locked": {
"lastModified": 1696426674,
"narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
"owner": "edolstra",
"repo": "flake-compat",
"rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
"type": "github"
},
"original": {
"owner": "edolstra",
"repo": "flake-compat",
"type": "github"
}
},
"flake-parts": {
"inputs": {
"nixpkgs-lib": [
"determinate-nix",
"nixpkgs"
]
},
"locked": {
"lastModified": 1748821116,
"narHash": "sha256-F82+gS044J1APL0n4hH50GYdPRv/5JWm34oCJYmVKdE=",
"rev": "49f0870db23e8c1ca0b5259734a02cd9e1e371a1",
"revCount": 377,
"type": "tarball",
"url": "https://api.flakehub.com/f/pinned/hercules-ci/flake-parts/0.1.377%2Brev-49f0870db23e8c1ca0b5259734a02cd9e1e371a1/01972f28-554a-73f8-91f4-d488cc502f08/source.tar.gz"
},
"original": {
"type": "tarball",
"url": "https://flakehub.com/f/hercules-ci/flake-parts/0.1"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
@@ -460,6 +519,30 @@
"type": "github"
}
},
"git-hooks-nix": {
"inputs": {
"flake-compat": "flake-compat_2",
"gitignore": [
"determinate-nix"
],
"nixpkgs": [
"determinate-nix",
"nixpkgs"
]
},
"locked": {
"lastModified": 1747372754,
"narHash": "sha256-2Y53NGIX2vxfie1rOW0Qb86vjRZ7ngizoo+bnXU9D9k=",
"rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
"revCount": 1026,
"type": "tarball",
"url": "https://api.flakehub.com/f/pinned/cachix/git-hooks.nix/0.1.1026%2Brev-80479b6ec16fefd9c1db3ea13aeb038c60530f46/0196d79a-1b35-7b8e-a021-c894fb62163d/source.tar.gz"
},
"original": {
"type": "tarball",
"url": "https://flakehub.com/f/cachix/git-hooks.nix/0.1.941"
}
},
"harmonia": {
"inputs": {
"crane": "crane",
@@ -655,6 +738,22 @@
"type": "github"
}
},
"nixpkgs-23-11": {
"locked": {
"lastModified": 1717159533,
"narHash": "sha256-oamiKNfr2MS6yH64rUn99mIZjc45nGJlj9eGth/3Xuw=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
"type": "github"
}
},
"nixpkgs-mine": {
"locked": {
"lastModified": 1781356656,
@@ -687,6 +786,22 @@
"type": "github"
}
},
"nixpkgs-regression": {
"locked": {
"lastModified": 1643052045,
"narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
"type": "github"
}
},
"nixpkgs-stable": {
"locked": {
"lastModified": 1780902259,
@@ -847,6 +962,7 @@
"borgthin": "borgthin",
"copyparty": "copyparty",
"deploy-rs": "deploy-rs",
"determinate-nix": "determinate-nix",
"devshell": "devshell_3",
"flake-utils": "flake-utils_6",
"harmonia": "harmonia",