In order to mitigate the latency of using nginx as a reverse-proxy, I recently added a feature to a Haskell application: instead of listening on a TCP port, it

In order to mitigate the latency of using nginx as a reverse-proxy, I recently added a feature to a Haskell application: instead of listening on a TCP port, it can listen on a unix socket. It's not only faster, it also avoids the congestion problems of TCP, and adds security (unix user and group permissions).