fix some macos stuff

hosts/artemis/default.nix

@@ -22,6 +22,7 @@
       '';
     }))
     git
+    swiftpm
   ];
 
   nyxs-nix.services = {
@@ -38,6 +39,22 @@
   nixpkgs.config.allowUnfree = true;
   nix.settings.extra-platforms = [ "x86_64-darwin" "aarch64-darwin" ];
   
+  nix.settings.trusted-users = [ "@admin" "nyxerinys" ];
+  nix.linux-builder = {
+    enable = true;
+    ephemeral = true;
+    maxJobs = 4;
+    config = {
+      virtualisation = {
+        darwin-builder = {
+          diskSize = 50 * 1024;
+          memorySize = 16 * 1024;
+        };
+        cores = 6;
+      };
+    };
+  };
+  
   # Necessary for using flakes on this system.
   nix.settings.experimental-features = "nix-command flakes";
   # Used for backwards compatibility, please read the changelog before changing.