zlacker

I am not sure about that but I think IANA is quite open to recognizing new well-known URIs:

https://www.iana.org/assignments/well-known-uris/well-known-...

Basically, assuming that you have a spec, I think it amounts to filing a PR or discussing it on a mailing list.

>>jruoho+(OP)
You can open an issue: https://github.com/protocol-registries/well-known-uris