In 2012, Google released version 1.0 of their PageSpeed modules for NGINX and Apache. It has gone largely unnoticed since then. The short of PageSpeed is that if you add it to your web server, you can configure it to optimize anything passing through it using techniques such as minification, format conversion, and even injecting scripts to lazy-load images. You can read more about what it does on the official site.
I have a few dozen projects on GitHub. I put a lot of effort into my README.md files, making them complete with descriptions, instructions, and screenshots – the last one being the most time-consuming to manage. Rich Editors are Easy I don’t mean easy for the developers (I never tried, but it sounds daunting), but for the users. All the data inside a rich file format such as .docx is embedded inside of itself.