{...}: {
  perSystem = {
    pkgs,
    inputs',
    ...
  }: {
    devShells.default = pkgs.mkShell {
      packages = with pkgs; [
        just
        alejandra
        nixpkgs-fmt
        nix-tree
        nix-diff
        nvd
        nix-inspect
        nix-du
        nix-output-monitor
      ];
    };
  };
}