Owner of 2 pinecils here, there are buttons and a display that shows the current temperature and other stuff. I only just learned that there’s an app, it works more than fine on its own, out of the box.
I got that specific iron because I needed to power it from 12v, and it works very well on the USB PD power supply I already have for my laptop.
Enel is currently doing exactly that with their electric car chargers (the Juicebox), they’ve decided to pull out from the North American market and just shut down the servers. Like WTF, at least open-source the thing…