@chris178 SmartSolution on discord says his camera works. SmartSolution Hi, i had problem with camera and isp color quality After check and test download radxa-a733 t2 rsdk , image file and upload on mmc and after load system all camera works good

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Just updated many armbian files shown as available for update. After the update sudo apt update shows the error message: E: The repository 'http://apt.armbian.com bookworm Release' is no longer signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. How can I fix this or was signing simply forgotten? Thank you!

That's advanced as hell for build, but you can use any Rockchip SDK to make it, Some factoryes share the SDK online Some don't you will just compile a copy of the same file that you can find in the android image

https://www.phoronix.com/news/Steam-Snap-ARM64-FEX