SK

Nextcloud AIO has an option to skip domain check. the github README hasinstructions. And i love nextcloud because it integrates many features in one, file sharing, office collaboration, chat, rss reader, mailbox, photos, calendar, address-book, etc.

I have two instances running, one public and one completely local. And having a domain is just convenient but not necessary.

@abeorch for family use, try something like friendica/hubzilla that provide many more features than something like mastodon which is only suitable for microblogging.