https://sd-card-images.johang.se/boards/banana_pi_m2_zero.html
There’s loads of images for all kinds of boards - I have tried the Debian Bookworm for Banana Pi Zero, and I can confirm that it boots. However, it’s a VERY minimal setup - there’s none of the usual tools to even enable networking, apparently? (Still trying to figure that out.)
The site claims the images are up to date, which is quite interesting. No idea how useful they really are, though.