desktop is building I guess, idk, need to start commiting stuff eventually lmao

modules/nixos/nix/default.nix

@@ -0,0 +1,36 @@
+{ lib, ... }:
+{
+  nix = {
+    settings = {
+      substituters = [
+        "https://nix-community.cachix.org"
+        "https://cache.nixos.org/"
+      ];
+      trusted-public-keys = [
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      ];
+      warn-dirty = lib.mkForce false;
+      experimental-features = lib.mkForce [
+        "nix-command"
+        "flakes"
+      ];
+      trusted-users = [ "@wheel" ];
+    };
+
+    # Garbage collect automatically every week
+    gc.automatic = lib.mkDefault true;
+    gc.options = lib.mkDefault "--delete-older-than 30d";
+
+    optimise.automatic = lib.mkDefault true;
+  };
+
+  nixpkgs = {
+    config = {
+      allowUnfree = lib.mkForce true;
+      allowUnsupportedSystem = true;
+      permittedInsecurePackages = [
+        # ...
+      ];
+    };
+  };
+}