build: add determinate nix support for darwin

- Add determinateSystems/determinate flake input
- Include determinate darwin modules in configuration
- Disable legacy nix module configuration
- Remove modules/darwin/nix/default.nix
- Add mac-va-mbp-work system using determinate nix

flake.lock

@@ -42,9 +42,67 @@
         "type": "github"
       }
     },
+    "determinate": {
+      "inputs": {
+        "determinate-nixd-aarch64-darwin": "determinate-nixd-aarch64-darwin",
+        "determinate-nixd-aarch64-linux": "determinate-nixd-aarch64-linux",
+        "determinate-nixd-x86_64-linux": "determinate-nixd-x86_64-linux",
+        "nix": "nix",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1770325739,
+        "narHash": "sha256-TPDWnhzKW/1+FPMiagZ9mZiQN0aKcGC09yYSUBuv8Mo=",
+        "owner": "determinatesystems",
+        "repo": "determinate",
+        "rev": "1b3259b71c81508ffd409114525df6a55c0f337f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "determinatesystems",
+        "repo": "determinate",
+        "type": "github"
+      }
+    },
+    "determinate-nixd-aarch64-darwin": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-zK2dgNHh/p92rk5jN+Y1LOMn0HEdTsS+7XXwb2g52oM=",
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/macOS"
+      },
+      "original": {
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/macOS"
+      }
+    },
+    "determinate-nixd-aarch64-linux": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-ckvZP0zFcbzLXWYOJUqYXkKBt0b2IZcQEr7YjEVtwOI=",
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/aarch64-linux"
+      },
+      "original": {
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/aarch64-linux"
+      }
+    },
+    "determinate-nixd-x86_64-linux": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-8dLtm8FJrpyBmrNpspJj30/6I5HGEfjjXuFqURcZ8pk=",
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/x86_64-linux"
+      },
+      "original": {
+        "type": "file",
+        "url": "https://install.determinate.systems/determinate-nixd/tag/v3.15.2/x86_64-linux"
+      }
+    },
     "disko": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1769524058,
@@ -98,6 +156,22 @@
       }
     },
     "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-compat_3": {
       "flake": false,
       "locked": {
         "lastModified": 1650374568,
@@ -113,6 +187,27 @@
         "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"
@@ -150,6 +245,32 @@
         "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"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -171,6 +292,27 @@
         "type": "github"
       }
     },
+    "nix": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "git-hooks-nix": "git-hooks-nix",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-23-11": "nixpkgs-23-11",
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1768960381,
+        "narHash": "sha256-32oMe1y+kwvIJNiJsIvozTuSmDxcwST06i+0ak+L4AU=",
+        "rev": "45ce621408cb8c9a724193d5fe858eb839662db8",
+        "revCount": 24453,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/DeterminateSystems/nix-src/3.15.2/019bde75-b4ee-74b2-a812-28dc2ee83d58/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/DeterminateSystems/nix-src/%2A"
+      }
+    },
     "nixlib": {
       "locked": {
         "lastModified": 1736643958,
@@ -209,17 +351,47 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1769330179,
+        "lastModified": 1761597516,
-        "narHash": "sha256-yxgb4AmkVHY5OOBrC79Vv6EVd4QZEotqv+6jcvA212M=",
+        "narHash": "sha256-wxX7u6D2rpkJLWkZ2E932SIvDJW8+ON/0Yy8+a5vsDU=",
+        "rev": "daf6dc47aa4b44791372d6139ab7b25269184d55",
+        "revCount": 811874,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2505.811874%2Brev-daf6dc47aa4b44791372d6139ab7b25269184d55/019a3494-3498-707e-9086-1fb81badc7fe/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.2505"
+      }
+    },
+    "nixpkgs-23-11": {
+      "locked": {
+        "lastModified": 1717159533,
+        "narHash": "sha256-oamiKNfr2MS6yH64rUn99mIZjc45nGJlj9eGth/3Xuw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "48698d12cc10555a4f3e3222d9c669b884a49dfe",
+        "rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
+        "rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
+        "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"
       }
     },
@@ -240,6 +412,36 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1768783163,
+        "narHash": "sha256-tLj4KcRDLakrlpvboTJDKsrp6z2XLwyQ4Zmo+w8KsY4=",
+        "rev": "bde09022887110deb780067364a0818e89258968",
+        "revCount": 930106,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/DeterminateSystems/nixpkgs-weekly/0.1.930106%2Brev-bde09022887110deb780067364a0818e89258968/019bd9ed-5f0b-7074-afb0-8bb5e13a7598/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/DeterminateSystems/nixpkgs-weekly/0.1"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1769330179,
+        "narHash": "sha256-yxgb4AmkVHY5OOBrC79Vv6EVd4QZEotqv+6jcvA212M=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "48698d12cc10555a4f3e3222d9c669b884a49dfe",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1770056022,
         "narHash": "sha256-yvCz+Qmci1bVucXEyac3TdoSPMtjqVJmVy5wro6j/70=",
@@ -259,11 +461,12 @@
       "inputs": {
         "apple-silicon": "apple-silicon",
         "darwin": "darwin",
+        "determinate": "determinate",
         "disko": "disko",
         "firefox-addons": "firefox-addons",
         "home-manager": "home-manager",
         "nixos-generators": "nixos-generators",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs_4",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "snowfall-lib": "snowfall-lib",
         "sops-nix": "sops-nix"
@@ -271,7 +474,7 @@
     },
     "snowfall-lib": {
       "inputs": {
-        "flake-compat": "flake-compat_2",
+        "flake-compat": "flake-compat_3",
         "flake-utils-plus": "flake-utils-plus",
         "nixpkgs": [
           "nixpkgs"

flake.nix

@@ -5,6 +5,7 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
     disko.url = "github:nix-community/disko";
+    determinate.url = "github:determinatesystems/determinate";
     snowfall-lib = {
       url = "github:snowfallorg/lib";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -73,6 +74,7 @@
           ./modules/nixos/common
         ];
         darwin = with inputs; [
+          determinate.darwinModules.default
           home-manager.darwinModules.home-manager
           sops-nix.darwinModules.sops
         ];

modules/darwin/default.nix

@@ -1,5 +1,6 @@
 {
   config = {
+    nix.enable = false;
     home-manager = {
       useGlobalPkgs = true;
       useUserPackages = true;

modules/darwin/nix/default.nix

@@ -1,103 +0,0 @@
-{ config, lib, pkgs, inputs, namespace, host, ... }:
-let
-  inherit (lib) types mkIf;
-  inherit (lib.${namespace}) mkBoolOpt mkOpt;
-
-  cfg = config.${namespace}.nix;
-in
-{
-  options.${namespace}.nix = {
-    enable = mkBoolOpt true "Whether or not to manage nix configuration.";
-    usingDeterminate = mkBoolOpt false "Whether we're using determinate nix";
-    package = mkOpt types.package pkgs.nixVersions.latest "Which nix package to use.";
-  };
-
-  config = mkIf cfg.enable {
-    nix =
-      let
-        mappedRegistry = lib.pipe inputs [
-          (lib.filterAttrs (_: lib.isType "flake"))
-          (lib.mapAttrs (_: flake: { inherit flake; }))
-          (x: x // {
-            nixpkgs.flake = if pkgs.stdenv.hostPlatform.isLinux then inputs.nixpkgs else inputs.nixpkgs-unstable;
-          })
-          (x: if pkgs.stdenv.hostPlatform.isDarwin then lib.removeAttrs x [ "nixpkgs-unstable" ] else x)
-        ];
-        users = [
-          "root"
-          "@wheel"
-          "nix-builder"
-          "evanreichard"
-        ];
-      in
-      {
-        inherit (cfg) package;
-
-        buildMachines = lib.optional (config.${namespace}.security.sops.enable && host != "nixos-builder") {
-          hostName = "10.0.50.130";
-          systems = [ "x86_64-linux" ];
-          sshUser = "evanreichard";
-          protocol = "ssh";
-          sshKey = config.sops.secrets.builder_ssh_key.path;
-          supportedFeatures = [
-            "benchmark"
-            "big-parallel"
-            "nixos-test"
-            "kvm"
-          ];
-        };
-
-        checkConfig = true;
-        distributedBuilds = true;
-        optimise.automatic = !cfg.usingDeterminate;
-        registry = lib.mkForce mappedRegistry;
-
-        gc = {
-          automatic = !cfg.usingDeterminate;
-          options = "--delete-older-than 7d";
-        };
-
-        settings = {
-          connect-timeout = 5;
-          allowed-users = users;
-          max-jobs = "auto";
-          auto-optimise-store = pkgs.stdenv.hostPlatform.isLinux;
-          builders-use-substitutes = true;
-          experimental-features = [
-            "nix-command"
-            "flakes "
-          ];
-          flake-registry = "/etc/nix/registry.json";
-          http-connections = 50;
-          keep-derivations = true;
-          keep-going = true;
-          keep-outputs = true;
-          log-lines = 50;
-          sandbox = true;
-          trusted-users = users;
-          warn-dirty = false;
-          use-xdg-base-directories = true;
-
-          substituters = [
-            "https://anyrun.cachix.org"
-            "https://cache.nixos.org"
-            "https://hyprland.cachix.org"
-            "https://nix-community.cachix.org"
-            "https://nixpkgs-unfree.cachix.org"
-            "https://nixpkgs-wayland.cachix.org"
-            "https://numtide.cachix.org"
-          ];
-
-          trusted-public-keys = [
-            "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
-            "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-            "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
-            "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-            "nixpkgs-unfree.cachix.org-1:hqvoInulhbV4nJ9yJOEr+4wxhDV4xq2d1DK7S6Nj6rs="
-            "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
-            "numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ik6cQjb41X0iXVXeHigGmycPPE="
-          ];
-        };
-      };
-  };
-}

systems/aarch64-darwin/mac-va-mbp-personal/default.nix

@@ -1,12 +1,13 @@
 {
   system.stateVersion = 6;
-  nix.enable = false;
+
+  # System Config
+  determinateNix = {
+    enable = true;
+    nixosVmBasedLinuxBuilder.enable = true;
+  };
 
   # System Config
   reichard = {
-    nix = {
-      enable = true;
-      usingDeterminate = true;
-    };
   };
 }

systems/aarch64-darwin/mac-va-mbp-work/default.nix

@@ -0,0 +1,11 @@
+{
+  system.stateVersion = 6;
+
+  # System Config
+  determinateNix = {
+    enable = true;
+    nixosVmBasedLinuxBuilder.enable = true;
+  };
+
+  reichard = { };
+}