However, I understand that you need two accounts to make it all work, one on GitHub and one on Cloudflare, both of which are free.
I for now pay for the web space on carrd.co and the domain isolabell.art
With the Cypher system everything would be free and soon with notifications on Nostr.
It is a project to follow carefully.

Sorry one more question: in addition to off-chain payments on lightning on one's own node, is it possible to receive on-chain payments by matching an xpub?