error:
       … while evaluating a branch condition
         at «string»:25:5:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |     ^
           26|       v

       … in the left operand of the OR (||) operator
         at «string»:25:28:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |                            ^
           26|       v

       … while evaluating definitions from `/nix/store/xfg4bws749i95jvnxhymxmfwailzk38q-source/modules/transposition.nix':

       … while evaluating definitions from `/nix/store/3amfq66s1cf70w7hm1hr2zzsx2r64ay6-source/checks/flake-module.nix, via option perSystem':

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/3pyskrvyfn2z6b751q9rfq8pgpjw1y8z-source/nixos/modules/system/activation/top-level.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error:
       Failed assertions:
       - The option definition `services.journald.extraConfig' in `/nix/store/3amfq66s1cf70w7hm1hr2zzsx2r64ay6-source/nixosModules/journald.nix' no longer has any effect; please remove it.
       Use services.journald.settings.Journal instead.