>>384898749
At its simplest, a unity package (not to be confused with a .unitypackage archive) is just assets under a Packages/ directory instead of under Assets/. So you can still just download or clone their new packages into that dir (and find dependencies yourself). The unity package manager thing presumably also works natively in Linux and does dependency crawling for you. I'm still not sure why vrchat didn't just use that instead of their own tool.