caddy
![caddy](/content/images/2016/02/caddy-boxed.png)
Caddy is a free open-source web server that supports HTTP/2, virtual hosts, proxying, load balancing, and best of all, it automatically enables HTTPS. I've been using it in place of nginx on a Mac Mini in front of a dozen Node.js and Sinatra sites. So far it's worked flawlessly. Fantastic stuff.