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How to code on Ancient Brain

All Worlds and Minds are written in JavaScript (JS).
They all run on your local machine in the browser. (They do not run on the server.) No install is needed.
They can all be written ("edited") in the browser. No install is needed.

Edit in browser

To edit code in the browser, we use the Ace editor. This does JavaScript syntax highlighting and syntax checking. We also have Intelligent code help.

Run from editor

You can run direct from the editor using the "Run" button. It always runs the saved version, so press "Save" first.