high level 🦩relay 🌐 hosting step #plebchain
1. find a suitable existing hardware or vm (or vps)
minipc / nodebox/ oldphone/old pc
2. pick a relay server - check if can supported in existing rasberry/linux/nix/andriod+termux - python/npm/docker 
3. install/config/open it using some traffic forwarding service that from either clearnet or enable .onion service pow protected. (no dns/ssl pay$ needed)
clearnet relays will auto crawled n advertise in nostr.watch or