That´s an exciting idea. Creating a closed loop economy can become a game changer because it so easy to exchange value over the Lightning Network. Actually a lot of building stones are already in place. https://webln.twentyuno.net/scroll can be reverted to pay out sats to website visitors for instance. The sats are collected in your wallet that is connected to Alby and can be spent again on another website. The interesting part here is it is an open system and works with any WebLN enabled wallet.