@patdavid you should set the Cache-Control header on your pages and assets to something like
“Cache-Control: max-age=0, no-cache, no-transform, private, must-revalidate” in order to disable caching.
If you want to use caching you will need to use unique filenames (the filename must change every time you change the contents change). Otherwise people will see a b0rked page from time to time because the stylesheet is outdated or doesn’t match the html.
RE the topic: Is there any good open screen recording software for linux? I’ve tried various in the past but none seemed to be really good.