An Open-Source Espresso
This is neat, but I wish we’d move from retrofitting Gaggia Classics to something more modern. Decent Espresso showed us that boiler machines for home use are a dead end, because they have too much thermal mass for rapid switching between brewing and steaming.
This is why I initially considered buying a Gaggia and modding it, but ultimately got a Breville Infuser as it basically comes pre-modded and is thermocoil-based, so you can quickly switching to steaming. It’s not the fastest steaming in the world, but I think it’s actually good for beginners to learn how to steam on a slow machine.