Would it make sense for twtxt v.2 to do something similar to bluesky, where you use a domain as you handle by creating a specific DNS record as explained by: https://matthiasott.com/notes/how-to-set-your-domain-as-your-bluesky-handle

@sorenpeter@darch.dk@darch.dk This is basically very similar to how WebFinger used by things like Mastodon and Salty.im amongst others.

Bare in mind that this kind of setup precludes anyone on shared hosting systems.