Split flake into multiple files

checks.nix

@@ -0,0 +1,15 @@
+{
+  self,
+  flake-utils,
+  git-hooks,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (system: {
+  checks.pre-commit-check = git-hooks.lib.${system}.run {
+    src = ./.; # TODO: self?
+    hooks.treefmt = {
+      enable = true;
+      package = self.packages.${system}.formatter;
+    };
+  };
+})

colmena.nix

@@ -0,0 +1,41 @@
+inputs @ {
+  self,
+  nixpkgs,
+  ...
+}: {
+  colmena = {
+    meta = {
+      nixpkgs = import nixpkgs {
+        system = "x86_64-linux";
+      };
+
+      specialArgs = {
+        inherit inputs self;
+      };
+    };
+
+    sue = {
+      deployment = {
+        allowLocalDeployment = true;
+        targetHost = null;
+      };
+
+      imports = [
+        (import ./machines).sue.module
+        ./nixos
+      ];
+    };
+
+    gamepc = {
+      deployment = {
+        targetHost = "gamepc";
+        targetUser = "root";
+      };
+
+      imports = [
+        (import ./machines).gamepc.module
+        ./nixos
+      ];
+    };
+  };
+}

dev-shells.nix

@@ -0,0 +1,12 @@
+{
+  self,
+  nixpkgs,
+  flake-utils,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (system: {
+  devShells.default = nixpkgs.legacyPackages.${system}.mkShell {
+    inherit (self.checks.${system}.pre-commit-check) shellHook;
+    buildInputs = self.checks.${system}.pre-commit-check.enabledPackages;
+  };
+})

flake.lock

@@ -256,6 +256,24 @@
       "inputs": {
         "systems": "systems"
       },
+      "locked": {
+        "lastModified": 1726560853,
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
       "locked": {
         "lastModified": 1681202837,
         "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
@@ -416,7 +434,7 @@
         "crane": "crane",
         "flake-compat": "flake-compat_2",
         "flake-parts": "flake-parts",
-        "flake-utils": "flake-utils",
+        "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "nixpkgs"
         ],
@@ -689,6 +707,7 @@
     "root": {
       "inputs": {
         "disko": "disko",
+        "flake-utils": "flake-utils",
         "git-hooks": "git-hooks",
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
@@ -815,6 +834,21 @@
         "type": "github"
       }
     },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "treefmt-nix": {
       "inputs": {
         "nixpkgs": "nixpkgs_4"

flake.nix

@@ -8,6 +8,7 @@
     stylix.url = "github:pizzapim/stylix/release-24.05";
     treefmt-nix.url = "github:numtide/treefmt-nix";
     nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
+    flake-utils.url = "github:numtide/flake-utils";
 
     git-hooks = {
       url = "github:cachix/git-hooks.nix";
@@ -51,110 +52,13 @@
     };
   };
 
-  outputs = {
+  outputs = inputs @ {flake-utils, ...}:
-    self,
+    flake-utils.lib.meld inputs [
-    nixpkgs,
+      ./packages.nix
-    ...
+      ./formatter.nix
-  } @ inputs: let
+      ./nixos-configurations.nix
-    supportedSystems = [
+      ./checks.nix
-      "x86_64-linux"
+      ./dev-shells.nix
-      "i686-linux"
+      ./colmena.nix
-      "aarch64-linux"
     ];
-    forAllSystems' = nixpkgs.lib.genAttrs;
-    forAllSystems = forAllSystems' supportedSystems;
-    pkgsForSystem = system:
-      import nixpkgs {
-        inherit system;
-      };
-
-    treefmtEval = forAllSystems (
-      system: inputs.treefmt-nix.lib.evalModule (pkgsForSystem system) ./treefmt.nix
-    );
-  in {
-    formatter = forAllSystems (system: (treefmtEval.${system}.config.build.wrapper));
-
-    nixosConfigurations = nixpkgs.lib.mapAttrs (
-      name: nixosModule:
-        nixpkgs.lib.nixosSystem rec {
-          system = "x86_64-linux";
-
-          specialArgs = {
-            inherit inputs system self;
-          };
-
-          modules = [
-            nixosModule
-            ./nixos
-          ];
-        }
-    ) (import ./machines);
-
-    checks = forAllSystems (system: {
-      pre-commit-check = inputs.git-hooks.lib.${system}.run {
-        src = ./.;
-        hooks = {
-          treefmt = {
-            enable = true;
-            package = treefmtEval.${system}.config.build.wrapper;
-          };
-        };
-      };
-    });
-
-    devShells = forAllSystems (system: {
-      default = nixpkgs.legacyPackages.${system}.mkShell {
-        inherit (self.checks.${system}.pre-commit-check) shellHook;
-        buildInputs = self.checks.${system}.pre-commit-check.enabledPackages;
-      };
-    });
-
-    colmena = {
-      meta = {
-        nixpkgs = import nixpkgs {
-          system = "x86_64-linux";
-        };
-
-        specialArgs = {
-          inherit inputs self;
-        };
-
-        nodeSpecialArgs = {
-          sue = {};
-        };
-      };
-
-      sue = {
-        name,
-        nodes,
-        ...
-      }: {
-        deployment = {
-          allowLocalDeployment = true;
-          targetHost = null;
-        };
-
-        imports = [
-          (import ./machines).sue
-          ./nixos
-        ];
-      };
-
-      gamepc = {
-        name,
-        nodes,
-        ...
-      }: {
-        deployment = {
-          targetHost = "gamepc";
-          targetUser = "root";
-        };
-
-        imports = [
-          (import ./machines).gamepc
-          ./nixos
-        ];
-      };
-    };
-  };
 }

formatter.nix

@@ -0,0 +1,8 @@
+{
+  self,
+  flake-utils,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (system: {
+  formatter = self.packages.${system}.formatter;
+})

machines/default.nix

@@ -1,4 +1,11 @@
 {
-  sue = import ./sue;
+  sue = {
-  gamepc = import ./gamepc;
+    system = "x86_64-linux";
+    module = import ./sue;
+  };
+
+  gamepc = {
+    system = "x86_64-linux";
+    module = import ./gamepc;
+  };
 }

nixos-configurations.nix

@@ -0,0 +1,17 @@
+inputs @ {
+  nixpkgs,
+  self,
+  ...
+}:
+nixpkgs.lib.mapAttrs (name: {
+    system,
+    module,
+  }:
+    nixpkgs.lib.nixosSystem {
+      inherit system;
+      modules = [./nixos module];
+
+      specialArgs = {
+        inherit inputs system self;
+      };
+    }) (import ./machines)

packages.nix

@@ -0,0 +1,13 @@
+{
+  nixpkgs,
+  flake-utils,
+  treefmt-nix,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (system: let
+  pkgs = nixpkgs.legacyPackages.${system};
+  treefmtEval = treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
+  treefmtWrapper = treefmtEval.config.build.wrapper;
+in {
+  packages.formatter = treefmtWrapper;
+})