Indeed “free” tier or not, myVolumio is closed source, and hence off limits, especially in my free time!
Just to clarify - these tests/images were purely for my personal use, and as I mentioned in Volumio Debian Bullseye Alpha - Raspi images - #15 by ashthespy - with the plugin’s coupled to myVolumio, it doesn’t make much sense to release “community” images where you can’t access plugins easily.