@@ -2,3 +2,4 @@ /private/
 /hardware-configuration.nix
 /configuration.nix
 /darwin-configuration.nix
+/cachix

@@ -0,0 +1,14 @@
+
+# WARN: this file will get overwritten by $ cachix use <name>
+{ pkgs, lib, ... }:
+
+let
+  folder = ./cachix;
+  toImport = name: value: folder + ("/" + name);
+  filterCaches = key: value: value == "regular" && lib.hasSuffix ".nix" key;
+  imports = lib.mapAttrsToList toImport (lib.filterAttrs filterCaches (builtins.readDir folder));
+in {
+  inherit imports;
+  nix.binaryCaches = ["https://cache.nixos.org/"];
+}
+    

@@ -21,6 +21,10 @@ };
     };
   };
 
+  environment.systemPackages = with pkgs; [
+    cachix
+  ];
+
   system.autoUpgrade = {
     enable = true;
     flags = [ "--max-jobs" "2" ];