NodeJS is the server-side JavaScript implementation. It utilizes Google's V8 engine and is very light on resources and fit for scalability and real-time systems. See Node.JS project (link).
Process can be used to read startup parameters.
Home (link)
Express can use the following templating engines:
Jade
Jade can be combined with Markdown (link), providing a simple and powerful templating system.
EJS
EJS (link)
Repository (link).