diff --git a/configuration.nix b/configuration.nix
index 37889b0..3f575b3 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -70,6 +70,7 @@
     jq
   ];
   # consider environment.defaultPackages = lib.mkForce [];
+  # TODO is it needed?
   environment.variables = {
     DOMAIN = config.selfprivacy.domain;
   };