Anti-cheat engineering beta

Extract this archive. Install Node.js 22 or later, then open a terminal in courier-lab and run: npm start
Open the full /learn URL printed in the terminal. Keep the terminal running. No package installation is needed for the course or source exercises.

The course is an owned toy-game teaching system, not production security. Human learning, time estimates and native accessibility remain unvalidated. See provenance.json for the reviewed source and known provenance gaps. The source includes separately labeled author controls used by the grader; they are not learner-authored work.
