Hi folks, I'm Justin, the lead dev on Pushpin and the founder of the company behind it (Fanout).<p>Previously on HN:<p><a href="https://news.ycombinator.com/item?id=9005724" rel="nofollow">https://news.ycombinator.com/item?id=9005724</a><p><a href="https://news.ycombinator.com/item?id=5516568" rel="nofollow">https://news.ycombinator.com/item?id=5516568</a><p>Pushpin helps developers build APIs that push data. It’s a generalized version of what many companies end up developing when they need to build a push API. Companies like Twitter, Dropbox, Uber, and others all build custom proxies/gateways (“stream server things” as I like to call them) for pushing data. Doing this is a lot of work, and none of these projects are reusable. Pushpin can be used to power any push API, for any project, at any organization.<p>I came up with the idea for Pushpin after working as CTO at a previous startup, where - you guessed it - we built a stream server thing.<p>Recently, we've made significant progress on performance. We've benchmarked over 1 million connections on a single server: <a href="https://github.com/fanout/pushpin-c1m" rel="nofollow">https://github.com/fanout/pushpin-c1m</a>