My immediate thoughts were that this is unnecessary and extra complications. I guess my thinking goes first to if you are starting the course from scratch, not considering if you are halfway through the page and then we update it. I wonder if I should look into a versioning system... maybe put the current state of the website on a v1 branch, host that at https://v1.learn-eleventy.pages.dev/, and then put a banner up on the regular website page that links to the original v1 site version?

Originally posted by @uncenter in #15 (comment)

This might just be a one-time v1 to v2 thing, or maybe we do it based on Eleventy versioning? Or maybe we plan this more regularly?

• Create banner component to display to users who have interacted before
  • Can we tell by like local storage values what pages someone has visited? Or do we just show it to everyone with a dismiss button?