One problem I have with this is that tons of people like to push the "GitHub is my resume" thing, but 75% of the time they have 25+ "forked" copies of major open source projects with maybe one or two extra commits on top.

It can be a real drag to try and suss out who actually has real contributions or real original work on their GitHub. Our approach for hiring is to actually have people cherry pick out one or two items they're really proud of and have them send a brief overview / sample.

That approach is also nice, because it gives you a great interview starting point to dig into a technical item that they (should be) comfortable with and passionate about.