Building a startup is hard enough. Adding another rather large dimension of an unknown language/technology is increasing risks significantly. Untested/unfamilia

Building a startup is hard enough. Adding another rather large dimension of an unknown language/technology is increasing risks significantly. Untested/unfamiliar technology is one of the top 5 risks which cause software budget and time overruns (pick any book by Steve McConnel on software project management, he does a good summary of these risks). If you think you have the time and resources, and more importantly, if an interesting technology is part of the reason why you wanted to do a startup; then take the numerous technical advice given by others here.