Reorganize modules

modules/devenv.nix

@@ -0,0 +1,12 @@
+{ config, pkgsUnstable, ... }:
+
+{
+  environment.systemPackages = with pkgsUnstable; [
+    devenv
+  ];
+
+  nix.settings.trusted-users = [
+    "root"
+    "avravels"
+  ];
+}