What's so hard about the mailing list? I don't know details but I think they (SourceHut) can help in migrating. Renting a VPS for a static site sounds overkill to me, especially taking into account the Lua team doesn't want to do any maintenance work themselves (understandable).The hardest part by far will be the mailing list. For this I do not see any good alternative to something like mailmanhost.com indeed.