Lauren Weinstein on Nostr: I just got an email from someone (who has long been reading my posts in various ...

I just got an email from someone (who has long been reading my posts in various venues) who is not a hardcore techie, but wants to start using Mastodon. He obviously spent considerable time trying to figure out how but ended up completely confused, as would be expected. What is the current recommended place to point him to get a tutorial for getting onto a public Mastodon site in the most straightforward way possible? He noted that if he wanted to get onto X or Threads or any of the others, it's so simple, but for Mastodon he was led completely astray by what he found when searching, and was asking me for an "invite" for an instance I have absolutely nothing to do with. So ... again, where should I point him? Or is the Mastodon philosophy still that users like him aren't welcome? Thanks.