evaluation warning: Package 'a-0' in /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-default.nix:16 has the following problem: maintainerless: This package has no declared maintainer, i.e. an empty `meta.maintainers` and `meta.teams` attribute. See https://nixos.org/manual/nixpkgs/unstable#sec-problems
warning: you did not specify '--add-root'; the result might be removed by the garbage collector
