The Gemini Protocol
Gemini (https://gemini.circumlunar.space/docs/specification.gmi) is a new network protocol for the 'small internet'. It doesn't support inline links or images, and explicitly forbids any extensions to the protocol.
I've created a gemini server at gemini://noats.nz (source code at https://git.sr.ht/~leif/noats.nz) and my posts from now on will be posted there only. Eventually I want to duplicate my posts across https and gemini, and to run both services on the same domain.