{
  lib ? import < nixpkgs/lib,
  ...
}:
let
  myLib = lib.makeExtensible (
    self:
    let
      callLibs =
        file:
        import file {
          inherit lib;
          myLib = self;
        };
    in
    {
      math = callLibs ./math.nix;
      config = callLibs ./config.nix;
      optimizations = callLibs ./optimizations.nix;
      attrsets = callLibs ./attrsets.nix;
      types = callLibs ./types.nix;
      debug = callLibs ./debug.nix;
      derivations = callLibs ./derivations.nix;
    }
  );
in
myLib