I’ve done the same and interviewed people whose resume said “interviewed customer to solicit project requirements; implemented them on-time and to-spec; iterated to improve based on customer feedback” only to have the candidate reveal that these were entirely mocks and made up customers and requirements. That, coupled with the horrific performance of the first two classes of grads from the program had us strike that program from our sourcing.

I have walked through github code that a candidate has posted on their resume, asking about choices made as we went, potential improvements, etc. and usually the answers were some version of "the instructor said we should do it that way."

Seems like it'd be pretty easy to ask them about the project and at least if they understand it/have thoughts on why they did what they did? But yeah seems like anyone could just copy a repo and post it as their own. Hmmm.