There are several failed attempts. Most of them died because they were just side-projects and/or programmed in a monolithic manner and crumbled under their own

There are several failed attempts. Most of them died because they were just side-projects and/or programmed in a monolithic manner and crumbled under their own weight. The two main devs on js-git are myself and Chris Dickinson. I'm working on it full time so it can have the attention it needs (hence the fundraiser) and Chris has a couple of failed attempts in the past and knows what bad areas to avoid. There is nothing wrong with JavaScript itself that makes this infeasible.