Learned about it from this YouTube video: <a href="https://youtu.be/h2yZYcOFACQ" rel="nofollow">https://youtu.be/h2yZYcOFACQ</a><p>It was mentioned this project aims to support more espresso machines (beyond Gaggia Classic and Rancilio Silvia) in the future, including machines with a thermal block instead of a boiler (e.g. Sage/Breville Barista Express).