classical web server on WAI/warp

 Mighttpd2 (pronounced as "mighty") is a simple but practical HTTP server
 written in Haskell. It handles static files and CGI scripts. It also
 provides reverse proxy functionality.
 .
 Mighttpd2 is now implemented as a WAI application using the high-performance
 HTTP engine, "warp". To httperf Ping-Pong benchmark, Mighttpd2 is faster than
 nginx.