The usefulness of a local Lua bundle depends on whether you're packaging a library or an application. pkg-config can search by version, so you're not going to end up trying to build a Lua 5.4 package with Lua 5.2 with Lux. If you need a reproducible Lua installation, you can configure pkg-config - That works quite well in nixpkgs, for example. Or, you can just disable pkg-config and let Lux install the correct Lua version for you. We don't provide a way to dump a Lua bundle, but in principle that would be easy to add if users request it.