Do you mean does it matter what version controlling tool they use or if they self-host? or if I would favour a candidate over another because of an active Github repository?
The latter. Are you pre-judging a candidate because you can look at an open source repo instead of spending your day trudging through a tech interview?
Mmh possibly, there might be a slight bias favoring them. The shorter the recruitment lifecycle and the quicker I can go back work on actual software engineering.
But then again, I hire lots of software engineers who have 0 OSS contributions but a shit-ton of industry experience. It does not matter if your last contribution was 4 years ago by the way. I am not looking for a full green activity graph (though it demonstrates consistency and discipline which are good) but rather for non-trivial, significant and well-crafted pieces of software so I can rest easy.
I don't go in trying to shoot down candidates. That's what whiteboard interviews are for. (: