flake: compileHomes

flake.nix

@@ -37,33 +37,12 @@
 
   outputs =
     { self, nixpkgs, ... }@inputs:
+    let
+      builders = import ./lib/builders.nix inputs;
+    in
     {
       nixosConfigurations =
-        let
-          lib = import ./lib nixpkgs.lib;
-
-          toPartialNixosConfig =
-            { hostname, system }:
-            {
-              name = hostname;
-              value = nixpkgs.lib.nixosSystem {
-                inherit system;
-                specialArgs = { inherit inputs; };
-                modules = [
-                  ./hosts/${hostname}/hardware-configuration.nix
-                  ./hosts/${hostname}/configuration.nix
-                  inputs.home-manager.nixosModules.default
-                ];
-              };
-            };
-          compileSystems =
-            systems:
-            lib.right
-              builtins.listToAttrs
-              (map toPartialNixosConfig)
-              systems;
-        in
-        compileSystems
+        builders.compileSystems
           [
             {
               hostname = "snowhawk";
@@ -78,29 +57,24 @@
               system = "x86_64-linux";
             }
           ];
-      homeConfigurations."zynh@msiserver" = inputs.home-manager.lib.homeManagerConfiguration {
-        pkgs = nixpkgs.legacyPackages."x86_64-linux";
-        extraSpecialArgs = { inherit inputs; };
-
-        modules = [
-          ./hosts/msiserver/home.nix
+      homeConfigurations =
+        builders.compileHomes
+          [
+            {
+              user = "zynh";
+              hostname = "msiserver";
+              system = "x86_64-linux";
+            }
+            {
+              user = "val";
+              hostname = "caveserver";
+              system = "x86_64-linux";
+            }
+            {
+              user = "zynh";
+              hostname = "little-lightning";
+              system = "aarch64-darwin";
+            }
           ];
     };
-      homeConfigurations."val@caveserver" = inputs.home-manager.lib.homeManagerConfiguration {
-        pkgs = nixpkgs.legacyPackages."x86_64-linux";
-        extraSpecialArgs = { inherit inputs; };
-
-        modules = [
-          ./hosts/caveserver/home.nix
-        ];
-      };
-      homeConfigurations."zynh@little-lightning" = inputs.home-manager.lib.homeManagerConfiguration {
-        pkgs = nixpkgs.legacyPackages."aarch64-darwin";
-        extraSpecialArgs = { inherit inputs; };
-
-        modules = [
-          ./hosts/little-lightning/home.nix
-        ];
-      };
-    };
 }

lib/builders.nix

@@ -0,0 +1,51 @@
+{ nixpkgs, ... }@inputs:
+
+let
+  lib = nixpkgs.lib.extend (import ../lib);
+in
+rec {
+  toPartialNixosConfig =
+    { hostname, system }:
+    {
+      name = hostname;
+      value = nixpkgs.lib.nixosSystem {
+        inherit system;
+        specialArgs = { inherit inputs; };
+        modules = [
+          ../hosts/${hostname}/hardware-configuration.nix
+          ../hosts/${hostname}/configuration.nix
+          inputs.home-manager.nixosModules.default
+        ];
+      };
+    };
+  compileSystems =
+    systems:
+    lib.right
+      builtins.listToAttrs
+      (map toPartialNixosConfig)
+      systems;
+
+  toPartialHomeManagerConfig =
+    { user, system, hostname ? "", configHostname ? "" }:
+    let
+      configHost = if builtins.stringLength configHostname > 0 then configHostname else hostname;
+      hostStr = lib.strings.optionalString (builtins.stringLength hostname > 0) "@${hostname}";
+    in
+    {
+      name = "${user}${hostStr}";
+      value = inputs.home-manager.lib.homeManagerConfiguration {
+        pkgs = nixpkgs.legacyPackages."${system}";
+        extraSpecialArgs = { inherit inputs; };
+
+        modules = [
+          ../hosts/${configHost}/home.nix
+        ];
+      };
+    };
+  compileHomes =
+    systems:
+    lib.right
+      builtins.listToAttrs
+      (map toPartialHomeManagerConfig)
+      systems;
+}

lib/default.nix

@@ -1,5 +1,5 @@
-lib:
-with lib;
+final: prev:
+with prev;
 rec {
   # Ternary operator
   # Exaample: