I’m curious about scalability. Bitcoin’s base layer is slow and expensive for small transactions, and while Lightning helps, it’s not fully mature yet for mass adoption in marketplaces. Do you see ecash solutions like Cashu bridging that gap effectively, or are there other layers/tools in the Bitcoin ecosystem you think are critical for this vision? I think LN and Cashu cover a lot of use-cases but I wouldn't discount ark or others, it's just that these already work well with nostr and are mature enough to build apps on them. Cashu wallets on nostr e.g. are portable to any app implementing nip60 so you see the balance and can pay fast and reliably anywhere.