A small update. They now do have an option to send via Lightning. It wasn't there last night, but now I can click 'Lightning invoice' and new QR code appears. But it doesn't really work yet. I tried to send 500 sats and the payment failed. One of my Lightning wallets told me that the receiver doesn't support the keysend feature Anyway, I'm happy that they are working on this, and I assume they'll get it working sooner or later! Who are Arkade? Are they open source and so on? I can't find that info on their wallet