Amazon Lightsail - LAMP (PHP 8) - Disable The Server Cache

On Amazon Lightsail, I created a new LAMP (PHP 8) instance.

I followed the official instructions on the Bitnami website to Disable The Server Cache. https://docs.bitnami.com/aws/infrastructure/lamp/administration/disable-cache/

The lines related to PageSpeed were not available to comment out.

I followed the official instructions of the Bitnami website to Start Or Stop Services. https://docs.bitnami.com/aws/faq/administration/control-services/

I used the control script to restart the Apache service.

On my Amazon Lightsail instance, I created created /home/bitnami/htdocs/index.php

In that file, I created a test line <?PHP echo "ONE" ?> and saved the file.

When I load the file from the browser, it shows the expected output.

However, when I change the text in the file, it takes time to update.

This suggests that the server is still caching and not serving instantly.

How do I correctly disable the server cache so I can build out my site?