What type of relay do you want?
A private relay for your drafts, settings and a permanent store of all your notes? I personally use Citrine on Android and nostr-relay-tray on desktop for that.
Or a public relay that'll get abused by spammers and chew up ram, bandwidth and storage faster than Windows11? I don't run a public relay because I'm not insane.
https://github.com/greenart7c3/Citrine
https://github.com/CodyTseng/nostr-relay-tray