List of software projects on my CV I'm a graduate student in mathematics but I've done a lot of open source software projects, some of which have even won hackathons. My question is should I put them on my CV? I've seen academic CVs only contain publications, conferences etc. But, I feel that these projects are very valuable to mention.
You're correct to want to mention them, CVs often probably only lack them because the writer hasn't done them or it isn't relevant to their career (perhaps they do not need to mention them any longer to prove particular skills). My CV included my programming/computing experience and was well received as the programming I had done was relevant; I was applying for computationally demanding PhD programmes.

Relevance is key so when including the projects, make sure the skills you gained from completing the open source projects are clear to the reader. Make sure it is also clear how these same skills are relevant to your application.