This python package provides a script that can be used to symlink Radicale collections into the path of all users, that have read access to that collection. Effectively this makes collections which are not owned but readable to a user discoverable in the Radicale web interface and in any CalDav client.
For this to work the multifilesystem storage backend for Radicale has to be used.
This script is only compatible with Radicale 3.
The package also provides templates for systemd service and timer files to run the script periodically.