Ovens, like in one's kitchen. Many “smart” ones exist, but little information exists out there for their specification and technical capabilities. Ones that do have info are usually ARM-based Linux systems.

The Oven is controlled via XMPP

Apparently this thing runs Debian, can run LXDE, output music, and generally function as a computer. Absurd for a wall oven touch screen. Requires some internal quackery to work, though.

https://www.youtube.com/watch?v=TC2sV3urTc8

https://web.archive.org/web/20200614210803/https://twitter.com/hackerfantastic/status/1272240992826114048

written almost entirely in Lua and JavaScript and runs on an engine called Crank Storyboard

There are no specific model infos mentioned for this one either. Apparently, it’s board is a clone of a BeagleBone SBC?

https://www.reddit.com/r/hacking/comments/h928c7/dumped_the_firmware_off_a_ge_smart_wall_oven_its/