(In)complete list and overview of projects that uses æternity

[albena.chain]

You can add the Coffee Shop state channels showcase aepp to Examples:

Coffee Shop State Channels Showcase App

Coffee Shop State Channels Aepp Hey Aeternity Lovers, I’m happy to announce that we, the Dev-Suite team, have deployed a new State Channels showcase application - The Coffee Shop. The application is made to be used with the BaseAepp. When the user deposits some funds in the application, he actually also opens a channel and is an initiator, the application itslef acts like an responder. With every purchase offchain transaction is made for the two parties. You can redeposit funds to the channel.…