Rise User Guides Created -- how back up?

I've recently converted one of our user guides with a significant amount of information into a RISE training.  It looks a lot better!

One concern of ours is what would happen if the RISE website went down -- how would our users be able to access the information offline?

I've tried to produce it in a PDF but the format is a bit clunky and obviously the interactive features don't work.

I want to move forward in converting most if not all of our user guides moving forward into RISE, but have this concern.

Thanks for any info!