[Edit]: didn't read enough about it, sorry

> Certbot is an easy-to-use automatic client that fetches and deploys SSL/TLS certificates for your webserver.

What? It is a program that updates config files and applies for a cert. The program is a "bot"

Agree, a flat file CMS bring back simplicity AND control. I personally use Grav (http://getgrav.org).

Being PHP based means zero configuration issues as it can run on any shared hosting. For simple sites, blogs etc it's perfect.

After years of using db-driven CMSes, I got a sense of relief in being "just files".