Hi all, for SCLo SIG purposes, we keep a list of collections at https://github.com/sclorg/sclo-ci-tests, specifically:
https://github.com/sclorg/sclo-ci-tests/blob/master/PackageLists/collections... https://github.com/sclorg/sclo-ci-tests/blob/master/PackageLists/collections...
Any collection in these list marked EOL could be trimmed from the mirrors. The lists may be slightly outdated, but that would only mean some EOL marks could be missing – anything already marked is fair game.