Napkin Dōjō

A dojo is where you go to train. You show up with intention, you practice something real, and you leave a little sharper than when you came in. That is the spirit of this app.

Napkin Dojo is for the ideas no one teaches you in school. The concepts that keep turning up in the best books and the most interesting conversations - the ones you half-know but can never quite pin down. The vocabulary of craft and cities and design. The words other languages have for feelings yours cannot name. The mental models of people building things at the edge of what is possible. The trade language you need to hold your own in rooms that matter.

Each idea is a card: what it means, how it shows up in the real world, and a question that tests whether it actually landed. Rate yourself - Known, Heard of, or Don't know - and Dojo brings it back at the right moment, until the idea stops being something you recognise and becomes something you carry.

Current decks:

• Japan Mind: 113 Japanese concepts, from kaizen to yugen to ikigai
• Lost in Translation: words other languages have for feelings English leaves unnamed
• First Principles: how the teams building at the edge of what's possible actually think
• City Makers: how great architects and urbanists think about the places we live
• Design Eye: the vocabulary of how things are designed well
• Cloth and Thread: the language of fine cotton and linen for the discerning buyer

New decks added as the world gets more interesting.

No account. No algorithm deciding what you should care about. No noise. Just the ideas you have decided are worth knowing, practiced until they are genuinely yours.