devenv bug

flake.nix

{
  description = "Description for the project";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    devenv.url = "github:cachix/devenv";
    # nix2container.url = "github:nlewo/nix2container";
    # nix2container.inputs.nixpkgs.follows = "nixpkgs";
    # mk-shell-bin.url = "github:rrbutani/nix-mk-shell-bin";
  };

  nixConfig = {
    extra-trusted-public-keys =
      "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs = inputs@{ flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [ inputs.devenv.flakeModule ];
      systems = [ "x86_64-linux" "x86_64-darwin" ];

      perSystem = { config, self', inputs', pkgs, system, ... }: {
        packages.default = pkgs.hello;

        devenv.shells.default = {
          name = "my-project";

          imports = [ ];

          packages = [ config.packages.default ];
        };

      };
      flake = { };
    };
}