In a CyberDojo the players work in small groups each group works at a single computer each group writes their code and their test-code totally inside a web browser each group submits their code and test-code to the CyberDojo server.
In this three-day hands-on course you will learn the principles and practices of Clean Code as described in Robert C. Martin's book: Clean Code: A Handbook of Agile Software Craftsmanship.