outerInputs @ { inputs, system, pkgs, ... }: {
  nix.registry.devenv.flake.outPath = pkgs.runCommand "devenvs" {} ''
    mkdir $out
    cp -r ${./.}/* $out
    cp ${inputs.self}/flake.lock $out/flake.lock
  '';

  system.extraDependencies = [
    (import ./rust.nix outerInputs)
  ];
}