Caddy vs. nginx,
Usually I use nginx for static files, ssl termination and as a reverse proxy before my application servers. The django cookiecutter template came with a new webserver named caddy. It's written in go and https per default. Usually you have to fiddle around with certificates and a more or less complicated nginx config, but with caddy it was surprisingly easy. The certificate came from letsencrypt and it got installed automatically. After that my site got an A on the ssllabs ssl test page without any further tweaking. Caddy might be a bit slower than nginx, but it's probably fast enough for most people and solves an annoying problem. This is really cool.