let
  sources = import ../unflake.nix;
  flake-compat = import sources.flake-compat {src = ../.;};
  pkgs = import sources.nixpkgs {};
  inherit (pkgs) lib;

  inherit (flake-compat) outputs;
in
  lib.strings.concatStringsSep "\n"
  (builtins.attrNames
    outputs.checks.x86_64-linux)