Rungsy
Get hired. One rung at a time.
A living map of what you need to know. Read a concept, recall it from memory, and let the schedule decide when you see it again — nothing counts as learned until you have produced it without looking.
- subjects
- 27
- concepts
- 89
- written
- 89
no account needed to start
Where to go
- The mapEvery concept as a constellation, dimmed by how well you know it. Pick subjects to bring forward, open one, work down the ladder. This is the app.
- The libraryThe same explanations as ordinary pages — readable without JavaScript, linkable, and browsable by subject. Start here if you would rather read than be scheduled.
- Your progress
- Saved to your account and carried to any device you sign in on.
- Every concept
- Checked against a structural validator: a worked example, a recall prompt, and an exercise you have to produce.
- Ownership
- The terms spell out who owns what, in plain language.