Are the Chinese particularly open API-wise here? Another user says BYD applied the DMCA to his repo that reverse-engineered their app (necessary because there's no other way). I think European auto-makers are probably doing poorly because a regime shift occurred in battery tech and EVs became much more useful and EVs are a manufacturing problem that advantages the guys who've been manufacturing electric motors and disadvantages the guys who manufacture cutting-edge gasoline engines.

I'm reminded of the fact that when I got a Roomba ten years ago the box said that the device was open and hackable. Searching online, the text looked like:

> This robot contains an electronic and software interface that allows you to control or modify, and remotely monitor its sensors. For software programmers interested in giving your iRobot new functionality we encourage you to do so.

My Dreame X40 Ultra does work flawlessly with Home Assistant but it carries no such text. In the end, I prefer the working to the text (so perhaps the Chinese companies are better), but things have changed over the intervening years.