Nice ! So you have a cryptographic identity that you own and can take to different platforms and have an ability to self host it?
well if you go to https://social.beaware.live/@BeAware
That's me. On my own site, all by myself. Yet, I am able to talk to you on Nostr via the Momostr.pink bridge AND I can talk to others on the 25,000+ Fediverse "sites".
Basically the point for me, is to be able to promote myself on my own site, but still be able to talk to others on other sites, without someone else being in control of who I can or cannot talk to. I am in control of me.
Discussion
the easiest way to explain it, is like Nostr, but one relay holds and controls your keys instead of the relays distributing the keys across the network. This gives more power to the server owners who can ban users for any reason they want.
So relays are not distributing keys, it’s distributing notes. Keys are 100% your own property on Nostr