refactor(flake): integrate home-manager into nixos configuration

flake.nix

@@ -44,6 +44,7 @@
       "${hostname}" = nixpkgs.lib.nixosSystem {
         specialArgs = { inherit inputs; };
         modules = [
+          home-manager.nixosModules.home-manager
           nur.modules.nixos.default
 
           ./system/common.nix
@@ -53,43 +54,28 @@
           {
             system.stateVersion = stateVersion;
             networking.hostName = hostname;
-          }
-        ];
-      };
-    };
 
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
 
-    makeHome = hostname:
-    let
-      extractModules = map
-        (module:
-         let hm = module.homeManagerModules;
-         in hm.${lib.head (lib.attrNames hm)});
-    in
-    {
-      "${username}@${hostname}" = home-manager.lib.homeManagerConfiguration
-      {
-        extraSpecialArgs = { inherit inputs; };
-        pkgs = import nixpkgs {
-          system = "x86_64-linux";
-          overlays = [ nur.overlays.default ];
-        };
+            home-manager.users.${username} = {
+              imports = [
+                ./home/${hostname}.nix
+                ./home/common.nix
+              ] ++ (map
+                  (module:
+                    let hm = module.homeManagerModules;
+                    in hm.${lib.head (lib.attrNames hm)})
+                  [ nixvim nethack plasma-manager ]);
 
-        modules = (extractModules [
-          nixvim
-          nethack
-          plasma-manager
-        ]) ++ [
-          nur.modules.homeManager.default
+              home = {
+                username = username;
+                homeDirectory = "/home/${username}";
+                stateVersion = stateVersion;
+              };
 
-          ./home/${hostname}.nix
-          ./home/common.nix
-
-          {
-            news.display = "show";
-            home.username = username;
-            home.homeDirectory = "/home/${username}";
-            home.stateVersion = stateVersion;
+              news.display = "show";
+            };
           }
         ];
       };
@@ -98,6 +84,5 @@
     forEachHost = fn: lib.mergeAttrsList (map fn hostnames);
   in {
     nixosConfigurations = forEachHost makeSystem;
-    homeConfigurations = forEachHost makeHome;
   };
 }

home/common.nix

@@ -48,8 +48,6 @@
     };
   };
 
-  nixpkgs.config.allowUnfree = true;
-
   home = {
     packages = with pkgs; let
       sent' = sent.overrideAttrs (oldAttrs: {
@@ -88,9 +86,5 @@
     sessionVariables = {
       ANI_CLI_PLAYER = "mpv";
     };
-
-    file = {
-      ".config/nixpkgs/config.nix".text = "{ allowUnfree = true; }";
-    };
   };
 }