feat(nixos): add home-manager to flake

flake.nix

@@ -1,18 +1,40 @@
 {
+  description = "NixOS setup for one host with home-manager";
+
   outputs = {
     self,
     nixpkgs,
+    home-manager,
     ...
   } @ inputs: {
     nixosConfigurations = {
       nemesis = nixpkgs.lib.nixosSystem {
         specialArgs = { inherit inputs; };
-        modules = [ ./hosts/nemesis ];
+        modules = [ 
+          ./hosts/nemesis 
+          
+          # Add the home-manager user
+          home-manager.nixosModules.home-manager {
+            # Don't instantiate the home-manager instance of nixpkgs
+            home-manager.useGlobalPkgs = true;
+            # Install user packages to /etc/profiles
+            home-manager.useUserPackages = true;
+            # Pass inputs to home-manager configurations
+            home-manager.extraSpecialArgs = { inherit inputs; };
+            # Add the users
+            home-manager.users.rafiq.imports = [
+              ./users/rafiq
+            ];
+          }
+        ];
       };
     };
   };
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    
+    home-manager.url = "github:nix-community/home-manager";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
   };
 }