diff --git a/darwin-common.nix b/darwin-common.nix
index 2e3a1b5f..6a1f40e9 100644
--- a/darwin-common.nix
+++ b/darwin-common.nix
@@ -10,6 +10,9 @@
     sshUser = "ragon";
     hostName = "ds9";
   }];
+  nix.extraOptions = ''
+    builders-use-substitutes = true
+  '';
 
   system.defaults = {
     NSGlobalDomain.AppleShowAllExtensions = true;
diff --git a/hosts/daedalus/default.nix b/hosts/daedalus/default.nix
index 3c85957e..7c6b3a7d 100644
--- a/hosts/daedalus/default.nix
+++ b/hosts/daedalus/default.nix
@@ -12,7 +12,7 @@ with lib.my;
   homebrew = {
     enable = true;
     autoUpdate = true;
-    casks = [ "hammerspoon" "amethyst" "android-platform-tools" "alfred" "ukelele" "homebrew/cask-drivers/zsa-wally" "lens" "logseq" ];
+    casks = [ "hammerspoon" "amethyst" "android-platform-tools" "alfred" "ukelele" "homebrew/cask-drivers/zsa-wally" "lens" "logseq" "discord"];
     masApps = { # Install Mac App Store apps (install them manually and then do `mas list` to get the id)
       "AdGuard for Safari" =  1440147259;
       "Xcode" =  497799835;