Link from Moodle -> Assignment per student

I have successfully added Github Classroom as an external tool, but I cannot seem to get Moodle to link out to Classroom for the students.

The default launch URL ( leads to a 404. I can embed the invite URL, but that’s not really where they should be going either (although at least that link works).

Is there a way to link out from Moodle and arrive at the student’s assignment repo? Or even their profile page? What am I missing?

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