Caffeine lovers take their coffee very seriously and that is most apparent when you dive into the world of espresso machines. To satisfy enthusiasts, an espresso machine needs to provide precise control over temperature, pressure, and flow to enable the perfect pull. But if you’re the type of true aficionado that isn’t content with any consumer off-the-shelf option, then you’ll be interested in the diyPresso One machine.

The diyPresso One kit costs €1,250.00 (about $1,390) and it isn’t meant to be a budget option. But it is more affordable than many of the high-end machines on the market. And, more importantly, its DIY and hackable nature means that you can tweak it and tinker with it until you have it exactly the way you like it. If you can’t make your perfect cup of espresso with the diyPresso One, then your perfect cup simply doesn’t exist.

That all starts with the open-source controller and software, which monitor the machine’s various sensors and oversee the brewing process. That controller is built around an Arduino MKR WiFi 1010 board, programmed with the Arduino IDE. The choice to use Arduino was critical, because it lets users easily modify the machine’s behavior through simple sketch changes.

The rest of the parts are of equally high quality. The enclosure is stainless steel formed into a beautiful minimalist design, with side windows so everyone can see the stunning copper boiler that was custom-made for the diyPresso One. And the machine takes advantage of E61 brewing group components, so users can swap them based on preferences or requirements. 

Kits are now available on the diyPresso site, but stock is limited.