this extension can be installed on a Wikimedia project or no? Thanks
Topic on Extension talk:QuizTabulate
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I'm not sure I understand the question. I don't work for the Wikimedia Foundation, but as the extension developer I don't see why not.
The extension is not installed on any Wikimedia project, so it'll have to pass review queue first and a security review. However I cannot tell if this can be or cannot be installed as it's not a decision I can take.