hey @Flo , @agambatra , @kiwi , @zachtos and @storm
We have a first nightly for the Rock Pi 4B ( https://rockpi.org/rockpi4 ), see https://emteria.com/supported-hardware
It's a first version, which doesn't come with all features yet. E.g. no DSI or OTA for now. But it can play mp4s in HD/UHD and is generally running really smooth. Please give it a try! - Looking forward to your feedback