mediathekview plugin for Kodi 20 (nexus)

Hello all, I just upgraded my Kodi installation from 17 to 20 and I noticed, that the last supported version in the repositories is 19. repo-mv is empty and contains only the png and xml file. Is that an isse with deployment or is nexus not supported? Do you recommend installing the plugin from source or downgrade kodi to 19? Thanks a lot. Michael