NGINX introduces native support for the ACME protocol | Hugonweb Annotated Link Bibliography
https://blog.nginx.org/blog/native-support-for-acme-protocol
NGINX will soon be able to use the ACME protocol to automatically get and renew SSL certificates. This seems like it has been a long time coming, as it's just now in a preview release. Apache's stable release has been able to do it for a while.