1 files changed, 15 insertions, 1 deletions
diff --git a/system/settings/darwin.nix b/system/settings/darwin.nix
index 6143625b..629eff16 100644
--- a/system/settings/darwin.nix
+++ b/system/settings/darwin.nix
@@ -1,10 +1,24 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
 {
   services.nix-daemon = {
     enable = true;
     enableSocketListener = true;
   };
+  nix = {
+    buildCores = lib.mkDefault 0;
+    daemonIONice = true;
+    daemonNiceLevel = 10;
+    gc = {
+      automatic = true;
+      user = "alan";
+      options = "--max-freed $((25 * 1024**3 - 1024 * $(df -P -k /nix/store | tail -n 1 | awk '{ print $4 }')))";
+    };
+  };
+
+  nixpkgs.config = {
+    allowUnfree = true;
+  };
 
   programs.zsh = {
     enable = true;