when will photon vision be avalable for limelight 3?
Full support will not occur this season.
Progress can be seen here: Create build for Limelight 3 · Issue #842 · PhotonVision/photonvision · GitHub
None of the developers have access to a LL3 to test it, but you could maybe try flashing this image. It’s got the CM4 pindefs in the devicetree, and the config.txt file should also support cm4. Take a look at the files we copy in and the script used to build that image. The good news is that all our big image changes seem to be localized to /boot, so you can poke at that using a Windows computer (?) if it doesn’t work right away