I think the SLOC count will not hurt, although it's less important for open source projects were I can quickly check things out for myself if I'm so inclined.

I think the SLOC count will not hurt, although it's less important for open source projects were I can quickly check things out for myself if I'm so inclined. Having done something, even if it never got traction for some reason, is better than having done nothing. Do list some projects, but if you have some real winners don't hide them in a jumble of failed or abandoned experiments. In general, it's good to quantify whatever you can and emphasize with specifics things you personally have done. Don't be shy about taking credit for your accomplishments in joint work; be honest but save nuance and modesty for the interview. Good luck.