diff --git a/modules/nixos/cache.nix b/modules/nixos/cache.nix
index 7f55c06..cce0641 100644
--- a/modules/nixos/cache.nix
+++ b/modules/nixos/cache.nix
@@ -11,9 +11,10 @@ in {
 
   config = lib.mkIf cfg.enable {
     nix.settings = {
-      substituters = ["https://nix-community.cachix.org"];
+      substituters = ["https://nix-community.cachix.org/" "https://nixpkgs-python.cachix.org/"];
       trusted-public-keys = [
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "nixpkgs-python.cachix.org-1:hxjI7pFxTyuTHn2NkvWCrAUcNZLNS3ZAvfYNuYifcEU="
       ];
     };
   };
diff --git a/modules/nixos/nix-ld.nix b/modules/nixos/nix-ld.nix
index 7559243..ed57daa 100644
--- a/modules/nixos/nix-ld.nix
+++ b/modules/nixos/nix-ld.nix
@@ -13,7 +13,7 @@ in {
   config = lib.mkIf cfg.enable {
     programs.nix-ld = {
       enable = true;
-      libraries = with pkgs; [];
+      libraries = with pkgs; [libclang stdenv.cc.cc];
     };
   };
 }