It seems like a lot of the repos required for Android 11 on a Tinkerboard R2.0 have been deleted. The seem to have been replace with differently names ones which only have an Android 12 branch. E.g. build-soong -> rockchip-android-soong. When doing a repo sync every repo asks for a github username and password. When putting the github link into a browser it returns a 404 error.
Steps to reproduce (with a clean directory):
repo init -u https://github.com/TinkerBoard-Android/manifest.git -b android11-rockchip -m tinker_board-android11-1.0.0.xml
repo sync
How do I build something now?