Check this, just built a lightweight paywall implementation that encrypts media URLs before packaging them with a wallet address and price in a QR code. 

QR code redirect link initiates a payment, and once confirmed, media link is decrypted quickly. It's infinitely faster than Lnbits. 1 click self hosting with node. https://image.nostr.build/d56351f8b8836c37c7c84b965f34620e536240b04e76d2d976d5ee617e51bfa1.jpg