Short phone screening with the standard HR type questions. Sent a link to their github repository to do a coding challenge, it took about 4 hours then you create a pull request with your code. Two months after I submitted it I never heard anything from them and I have long since moved on. The pull request is still open, same as others that you can view on their repo. It's odd and pretty rude that you never hear anything back even if it's just a "we appreciate your time but have moved on to other candidates." type email.