Each host have nix file for home manager

To put specific host parameters

nixos/default.nix

@@ -60,6 +60,7 @@
     useUserPackages = true;
     extraSpecialArgs = {
       inherit hostConfig;
+      inherit hostname;
     };
     users.${username} = {
       home.stateVersion = stateVersion;
@@ -80,7 +81,9 @@
         if hostConfig.gaming then
           [ ../home-manager/lutris.nix ]
         else []
-      );
+      )  ++ lib.optional (
+        builtins.pathExists ../home-manager/hosts/${hostname}.nix
+        ) ../home-manager/hosts/${hostname}.nix;
     };
   };