diff --git a/modules/nixos/nix/default.nix b/modules/nixos/nix/default.nix
index 12d29e8..9c14304 100644
--- a/modules/nixos/nix/default.nix
+++ b/modules/nixos/nix/default.nix
@@ -48,19 +48,18 @@ in
 
         checkConfig = true;
         distributedBuilds = true;
+        optimise.automatic = true;
+        registry = mappedRegistry;
 
         gc = {
           automatic = true;
           options = "--delete-older-than 7d";
         };
 
-        optimise.automatic = true;
-
-        # Pin the registry to avoid downloading and evaluating a new nixpkgs version everytime
-        registry = mappedRegistry;
-
         settings = {
+          connect-timeout = 5;
           allowed-users = users;
+          max-jobs = "auto";
           auto-optimise-store = pkgs.stdenv.hostPlatform.isLinux;
           builders-use-substitutes = true;
           experimental-features = [
@@ -77,6 +76,26 @@ in
           trusted-users = users;
           warn-dirty = false;
           use-xdg-base-directories = true;
+
+          substituters = [
+            "https://anyrun.cachix.org"
+            "https://cache.nixos.org"
+            "https://hyprland.cachix.org"
+            "https://nix-community.cachix.org"
+            "https://nixpkgs-unfree.cachix.org"
+            "https://nixpkgs-wayland.cachix.org"
+            "https://numtide.cachix.org"
+          ];
+
+          trusted-public-keys = [
+            "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
+            "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+            "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+            "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+            "nixpkgs-unfree.cachix.org-1:hqvoInulhbV4nJ9yJOEr+4wxhDV4xq2d1DK7S6Nj6rs="
+            "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
+            "numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ik6cQjb41X0iXVXeHigGmycPPE="
+          ];
         };
       };
   };