Upstream development of xmms2 has seized. There is no activity at https://github.com/xmms2 and xmms2.org no longer exists. The last upstream release was in 2011, so it's time to let it go. Cheers
There is release 0.9.1 of 2022-05-02 at https://github.com/xmms2/xmms2-devel/releases/tag/0.9.1 . Rather than throwing it out, please consider upgrading xmms2 packaging to 0.9.1 instead. Thank you! Best, Sebastian
The pkg will not be part of bookworm because it failed to migrate before the freeze.