[CiPHPerCoder]

It sounds like we should probably all get together and write a draft RFC for this. Choosing a good directory to toss everything into would be grand.

I'd prefer .well-known since there's already an RFC for it, but maybe .dev-extra would be more appropriate?

[robbles]

Do you really want to type either of those prefixes thousands of times? Brevity and lack of special chars in the name would be nice to have.