Since I do intend on configuring every trackball I own to use this scheme, not just the MX Ergo.
I did not add an Nvidia knob to this module, as I do not foresee *ever* using one of their graphics card.
Let's consolidate all modules under one path, so that NixOS, home-manager, and nix-darwin (if I ever end up using it down the line) would go under the same folder.