LN is interoperable with ecash. In fact ecash would be a lot less useful without LN. If you still want LN you can still set that up and sent and recieve from ecash users:
About time to recognize and embrace the fact that the Lightning Network has failed as a fast micropayments system.
On top of that, nostr integration (zaps) is slow and convoluted and hosting your own LNURL server a pain in the ass. I tried a few weeks ago and gave up.
Where did I move to? Custodial providers. Mutiny (with Fedimint - which then broke), Alby and npub.cash.
Custodial is the only realistic solution for pocket change amount of sats, so why not embrace that and make the best UX possible? The UX nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft just demoed is basically unbeatable.
It's not only good for me, it's good for all the new people we will onboard to this magic world of bitcoin and nostr 💜
It's our responsibility to keep incessantly educating about self-custody for larger amounts.
Discussion
Of course LN is necessary as a settlement system. Just not as a fast micropayments system.