Linux Capable published a tutorial about installing the Nginx Google Pagespeed Module on Debian 11 Bullseye.
Install/Enable Nginx Google Pagespeed Module on Debian 11 Bullseye
Learn how to install, enable Google Pagespeed on Debian 11 with complete steps on configuring and set up including best tips.
Install/Enable Nginx Google Pagespeed Module on Debian 11 Bullseye - LinuxCapable