Aleks,
I have reached Nirvana! I found an LMS that will install using the Custom Web App. It is “OpenEClass” made by education professionals in Greece. So this will be the last post for this one.
Please consider upgrading MariaDB to 10.4+ in YunoHost. It will make it much easier if someone wants to do what I’m doing.
Lovin’ the YunoHost.
Ralph Shinevar