Pro-tip for L1 wallet authors - implement Cashu to gain instant access to the lightning network (although lightning does not have to be hard with nostr:nprofile1qqsfwyw34w5qdgazshlnap73wkgzcte9qaqcvrvuvkgrez67scltmqgpzemhxue69uhk2er9dchxummnw3ezumrpdejz7qghwaehxw309an8y6n0wd5zumn0wd68yvfwvdhk6kca7q7SDK).

With a few API calls you enable your clients to send and receive lightning payments without the pain of channel management and without custody for the wallet authors.

Pro tip 2: allow the client to scan any Qr code (monero, litecoin, stablecoins, ...) and pay it through a swap service from lightning - by melting cashu tokens (so the user does not have to wait for confirmation).