Archive.org is blocked

So I’m a new user and am trying out Tectonic. Archive.org is unaccessible from my location, and according to the changelog as of 0.1.11, is where the default bundle is downloaded from. Is it necessary for me to grab all packages via VPN or is there some way for me specify a different repository?

Perhaps this still works: https://github.com/tectonic-typesetting/tectonic/issues/131#issuecomment-435792227 I don’t know if there’s also one for tl2019.
Hm, maybe this should be documented, if it isn’t already. Will check that.