```
while evaluating 'byName' at /home/michael/Repositories/nix/nixpkgs/lib/modules.nix:362:25, called from /home/michael/Repositories/nix/nixpkgs/lib/modules.nix:370:21:
while evaluating anonymous function at /home/michael/Repositories/nix/nixpkgs/lib/modules.nix:363:22, called from /home/michael/Repositories/nix/nixpkgs/lib/modules.nix:363:9:
value is a string while a set was expected, at /home/michael/Repositories/nix/nixpkgs/lib/modules.nix:364:25
```