diff --git a/default.nix b/default.nix
index d1b202a..f68b2fa 100644
--- a/default.nix
+++ b/default.nix
@@ -14,6 +14,8 @@
   modules = import ./modules; # NixOS modules
   overlays = import ./overlays; # nixpkgs overlays
 
+  wsgiserver = pkgs.callPackage ./pkgs/python-modules/wsgiserver { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
+
   colors = pkgs.callPackage ./pkgs/colors { };
 
   rank_photos = pkgs.callPackage ./pkgs/rank_photos { };
@@ -28,10 +30,9 @@
   plotbitrate = pkgs.callPackage ./pkgs/plotbitrate { };
 
   mangohud = pkgs.callPackage ./pkgs/MangoHUD { };
+  grav1 = pkgs.callPackage ./pkgs/grav1 { wsgiserver = wsgiserver; setuptools = pkgs.python3Packages.setuptools; };
 
   botamusique = pkgs.callPackage ./pkgs/botamusique { };
 
   mesloNFp10k = pkgs.callPackage ./pkgs/fonts/MesloNFp10k.nix { };
-
 }
-