Open RV auto-load plugin

Hi there,
I am new to RV, and I am simply trying to automatically load one of the provided plugins (OpenColorIO Basic Color Management/ocio_source_setup-2.5.rvpkg) so that all users get it without needing to manually load the package in Preferences.

I have tried using rvpkg -optin on the command line, and the package shows up as loaded. I have also modified the package’s metadata PACKAGE file, setting the “optional” key to “false”.
Despite both of these, OpenColor IO Basic Color Management is not loaded by default when I launch RV.

Any ideas on how I can achieve this? Thanks in advance