try hyprland instead

utils/binary-cache.nix

@@ -11,12 +11,15 @@
         # also add mirrors?
         #   "https://mirrors.ustc.edu.cn/nix-channels/store"
         "https://cache.nixos.org"
+        "https://hyprland.cachix.org"
     ];
 
     trusted-public-keys = [
       # the default public key of cache.nixos.org, it's built-in, no need to add it here
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
     ];
+    builders-use-substitutes = true;
   };
 
 }