error:
       … while evaluating a branch condition
         at «string»:23:10:
           22|     if !keepName n then {}
           23|     else if !builtins.isAttrs c || isDrv c then c
             |          ^
           24|     else if c ? _type || !(c.recurseForDerivations or true) then {}

       … in the left operand of the OR (||) operator
         at «string»:23:33:
           22|     if !keepName n then {}
           23|     else if !builtins.isAttrs c || isDrv c then c
             |                                 ^
           24|     else if c ? _type || !(c.recurseForDerivations or true) then {}

       … while evaluating definitions from `/nix/store/h63gyrgg5g6a2x0bw5ax37719zh5jwqk-source/flake-modules/herculesCI-attribute.nix':

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

       … while evaluating definitions from `/nix/store/3vr7skkmisl7bvbmq7yshmwjka5xy8mw-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `users.users.traefik.group':

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

       error: The option `users.users.traefik.group' has conflicting definition values:
       - In `/nix/store/3vr7skkmisl7bvbmq7yshmwjka5xy8mw-source/nixos/modules/services/web-servers/traefik.nix': "traefik"
       - In `nixos@services/traefik': "podman"
       Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.