It really would make sense if Signal would support more than just phone numbers as identifiers. It shouldn't be too hard: in the protocol, use URIs as identifi

It really would make sense if Signal would support more than just phone numbers as identifiers. It shouldn't be too hard: in the protocol, use URIs as identifiers, using tel: (or sms:?) for mobile phones, mailto: for email addresses, maybe urn:uuid: for general UUIDs. I've not looked at the internals — it's possible of course that it already does exactly this.