srtlg [1] filed a deletion request for cctbx-bin [2]: The binary distribution http://cci.lbl.gov/cctbx_build/ does no longer exist. The successor on Github (https://github.com/cctbx/cctbx_project/releases/tag/v2026.9) uses a completely different build system (basically, it downloads miniconda and builds the binary modules under that system). So there is no usable binary package of cctbx anymore, in my opinion.
[1] https://aur.archlinux.org/account/srtlg/ [2] https://aur.archlinux.org/pkgbase/cctbx-bin/
