for reference:
friendlyelec released a debian 11 command line version only:
sd image:
https://drive.google.com/file/d/1s_dOq9gD-6iaeRvO9Epc-MLe0hkEQKiQ/view?usp=share_link
sd-to-mmc image:
https://drive.google.com/file/d/1wZRtor13gZ40rQMD-BQuM2MzXOs4RbLW/view?usp=share_link