I now have a well-formed, well-known Webfinger setup at https://nathan.freitas.net/.well-known/webfinger
30 years ago, in my early introductions to Unix at the UC Santa Barbara Micro Computer Lab, one of the first commands I learned was “finger”. This was a way to lookup another person by username on any system on the network.
Glad to see this make a comeback as an essential piece of the fediverse.