It basically pipes a fifo into netcat, and pipes the output of netcat to an HTTP parsing script, which calls router and model "methods" (which use Bash's built-

It basically pipes a fifo into netcat, and pipes the output of netcat to an HTTP parsing script, which calls router and model "methods" (which use Bash's built-in "namespacing") which runs the Bash templating language esh and pipes the the HTTP response back into the fifo.