There is no "lightning offer" button in Umbrel installations.
Is there any spec restrictions or needed update??
Want mining rewards delivered straight to your wallet?
Set up Ocean ( nostr:npub1qtvl2em0llpnnllffhat8zltugwwz97x79gfmxfz4qk52n6zpk3qq87dze ) mining payouts to Alby Hub and receive rewards seamlessly on-chain or via BOLT12 over Lightning.
Learn how👇
https://getalby.com/blog/how-to-earn-bitcoin-mining-rewards-from-ocean-with-alby-hub