See, it turns out that the Rabbit R1 seems to run Android under the hood and the entire interface users interact with is powered by a single Android app. A tipster shared the Rabbit R1’s launcher APK with us, and with a bit of tinkering, we managed to install it on an Android phone, specifically a Pixel 6a.
Edit: Someone also got doom and Minecraft running on this thing
This was a marketing post, not a technical one. Unless we see any git branches or ROM teardown we won’t know what they were doing. I highly doubt that they did any kernel patches though.