{
  flake = {
    overlays.default = final: prev:
      prev.lib.composeManyExtensions
      (
        prev.lib.pipe ./. [
          builtins.readDir
          builtins.attrNames
          (builtins.filter (name: name != "default.nix"))
          (map (file: import ./${file}))
        ]
      )
      final
      prev;
  };
}