lib:
lib.makeExtensible (self: {
  defaultSystems = import ./systems.nix;
  genSystems = lib.genAttrs self.defaultSystems;

  pkgBin = pkg:
    if (pkg.meta or {}) ? mainProgram
    then "${pkg}/bin/${pkg.meta.mainProgram}"
    else "${pkg}/bin/${pkg.pname}";

  prefixStrings = prefix: strings:
    lib.forEach strings (string: "${prefix}${string}");
})