The copy you hold yourself

Progress & backup

Visited pages, recorded exhibits, ready-when checks, your "explain it to your roommate" notes, and the review queue are all stored in this browser. Export them before switching devices or clearing the browser.

If you would rather not think about it, an optional account keeps a copy on the server and merges it across your computers. It changes nothing here: the export, import, and progress code below work the same with or without one, and the site works the same with no account at all.

Progress code (for phones)

A compact code with the same state as the JSON backup, minus photos, so it can be typed or pasted on a phone at the bench where files are awkward. Copy it here, paste it there, press Restore.

Your explanations

The three-sentence explanations you wrote at the end of lessons.

Where you got stuck

Sections you marked “stuck” or “not clear”, on the page where you marked them. Come back to them; clear them once you are unstuck.