I think I get where you're going with it, I like the concept generally.

One idea maybe position it against stuff like ngrok, the included subdomain is itself a value add. (I see its a sub-sub domain, maybe offer the subs a higher level than below relay.*)

The sats-based payment too is a friction reduction in many cases, arguably more so than the VPS. That's buried in the cards, maybe move the CTA up higher where all someone has to do is enter a subdomain and they get an invoice and CLI snippet

An agent being able to get an SSL subdomain on the fly has a lot of value

Also be sure to add CLINK for subscriptions, especially for the clankers ;)

We were wishing to get your feedback, and it happened to be the first comment :-)

Feel free to ping any time, I like seeing new services for sats get cooking