Topic on Manual talk:How to make a MediaWiki skin

I created a Mustache skin, probably following the guidelines (no guarantee...) and that worked fine! Very happy with the skin, but then something weird happened. For a second user, the skin won't load because it isn't VE compatible, even if that user has the same user-rights as Admin.

Could you add some guidelines on how to make the skin VE compatible?

I'll do that now. TLDR: Extension:VisualEditor/Skin_requirements should help you here!