I'm going for that random feel so that worked. There was this tapezine in the 80s called "tellus" that I'm loosely basis this on.

https://en.m.wikipedia.org/wiki/Tellus_Audio_Cassette_Magazine

 Yes you can submit! I can either give you simplex or signal.

Regarding the relay basically it means (I think) if you set it up in your nostr client as an outbox, my relay will always publish your messages. It is also storing you notes for you. So if damus is unreachable my little server will have a copy of and will send your messages.