Technological choice ?
An LRS system is chosen for its functions, not for the technologies it uses.
In an ecosystem logic where the LRS system is only one component, we know theoretically how to mix technologies.
However, the choice to use PHP 7 is a plus, especially in the Open Source community (Moodle community and Chamilo community in particular).
With MySQL or MariaDB, it guarantees a simplified installation, the server environments based on WAMP being the most common to date. For developers, PHP remains the most popular choice, which is important when it comes to deploying a project.
SCORM to xAPI Wrapper