How do I ensure some morphs used by the plugin (out of a morph repack) are considered a hard dependency? Do I need to add them manually to the dependencies file? I was not aware of this (still being quite a noob myself
The way VAM consider you have dependencies is by looking up if you have .var references.
Simply having a full name inside "something" (a preset, a scene, a plugin...) would trigger the dependency system.
I think you would simply add a static string variable with a var name, it would think it's a dependency : )