Extract flake modules

flake-modules/dev-shell.nix

@@ -0,0 +1,14 @@
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      devShells.default = pkgs.mkShell {
+        packages = with pkgs; [
+          just
+          lua-language-server
+          lua54Packages.luacheck
+          nixd
+        ];
+      };
+    };
+}

flake-modules/formatting.nix

@@ -0,0 +1,7 @@
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      formatter = pkgs.nixfmt-rfc-style;
+    };
+}

flake-modules/nixos-configurations.nix

@@ -0,0 +1,47 @@
+{ inputs, self, ... }:
+
+{
+  flake =
+    let
+      inherit (self) outputs;
+
+      specialArgs = {
+        inherit inputs outputs self;
+
+        system = "x86_64-linux";
+        username = "opdavies";
+      };
+
+      mkNixosConfiguration =
+        {
+          hostname,
+          stateVersion ? "22.11",
+          system ? "x86_64-linux",
+        }:
+        inputs.nixpkgs.lib.nixosSystem {
+          inherit system;
+
+          modules = [ "${self}/hosts/${hostname}/configuration.nix" ];
+
+          specialArgs = specialArgs // {
+            inherit hostname stateVersion system;
+          };
+        };
+    in
+    {
+      nixosConfigurations = {
+        lemp11 = mkNixosConfiguration { hostname = "lemp11"; };
+
+        nixedo = mkNixosConfiguration {
+          hostname = "nixedo";
+          stateVersion = "24.11";
+        };
+
+        t480 = mkNixosConfiguration { hostname = "t480"; };
+
+        t490 = mkNixosConfiguration { hostname = "t490"; };
+
+        PW05CH3L = mkNixosConfiguration { hostname = "PW05CH3L"; };
+      };
+    };
+}

flake-modules/packages.nix

@@ -0,0 +1,21 @@
+{ inputs, self, ... }:
+
+{
+  perSystem =
+    { pkgs, system, ... }:
+    let
+      # TODO: refactor to use inputs' or similar.
+      nixvim = inputs.nixvim.legacyPackages.${system}.makeNixvimWithModule {
+        inherit pkgs;
+
+        module = import "${self}/modules/home-manager/coding/neovim/config";
+      };
+    in
+    {
+      packages = {
+        inherit nixvim;
+
+        default = pkgs.mkShell { buildInputs = with pkgs; [ just ]; };
+      };
+    };
+}

flake.nix

@@ -27,89 +27,22 @@
   };
 
   outputs =
-    inputs@{
+    inputs@{ flake-parts, ... }:
-      flake-parts,
-      nixpkgs,
-      self,
-      ...
-    }:
     flake-parts.lib.mkFlake { inherit inputs; } {
-      flake =
+      flake = {
-        let
-          inherit (self) outputs;
-
-          specialArgs = {
-            inherit inputs outputs self;
-
-            system = "x86_64-linux";
-            username = "opdavies";
-          };
-
-          mkNixosConfiguration =
-            {
-              hostname,
-              stateVersion ? "22.11",
-              system ? "x86_64-linux",
-            }:
-            nixpkgs.lib.nixosSystem {
-              inherit system;
-
-              modules = [ ./hosts/${hostname}/configuration.nix ];
-
-              specialArgs = specialArgs // {
-                inherit hostname stateVersion system;
-              };
-            };
-        in
-        {
         homeManagerModules.default = import ./modules/home-manager;
 
-          nixosConfigurations = {
-            lemp11 = mkNixosConfiguration { hostname = "lemp11"; };
-
-            nixedo = mkNixosConfiguration {
-              hostname = "nixedo";
-              stateVersion = "24.11";
-            };
-
-            t480 = mkNixosConfiguration { hostname = "t480"; };
-            t490 = mkNixosConfiguration { hostname = "t490"; };
-            PW05CH3L = mkNixosConfiguration { hostname = "PW05CH3L"; };
-          };
-
         nixosModules.default = import ./modules/nixos;
 
         overlays = import ./overlays { inherit inputs; };
       };
 
-      perSystem =
+      imports = [
-        { pkgs, system, ... }:
+        ./flake-modules/dev-shell.nix
-        let
+        ./flake-modules/formatting.nix
-          # TODO: refactor to use inputs' or similar.
+        ./flake-modules/nixos-configurations.nix
-          nixvim = inputs.nixvim.legacyPackages.${system}.makeNixvimWithModule {
+        ./flake-modules/packages.nix
-            inherit pkgs;
-
-            module = import ./modules/home-manager/coding/neovim/config;
-          };
-        in
-        {
-          devShells.default = pkgs.mkShell {
-            packages = with pkgs; [
-              just
-              lua-language-server
-              lua54Packages.luacheck
-              nixd
       ];
-          };
-
-          formatter = pkgs.nixfmt-rfc-style;
-
-          packages = {
-            inherit nixvim;
-
-            default = pkgs.mkShell { buildInputs = with pkgs; [ just ]; };
-          };
-        };
 
       systems = [ "x86_64-linux" ];
     };