a place to practice programming
Is cyber-dojo free?
It depends...
How much is a licence?
It's up to you!
  • Large companies/organizations typically pay £1000-£750.
  • Smaller teams/individuals typically pay £250-£50.
How long does a license last?
That's also up to you!
  • You can pay a larger amount once.
  • You can pay a smaller amount every year.
How do I buy a licence?
There are two ways:
What about operational costs (such as cloud hosting)?
They are generously paid by our sponsors:
Why does cyber-dojo use animal avatars (drawn by Nadya Sivers)?
Two reasons:
  • To provide identity without requiring a login.
  • To provide anonymity during reviews.
Is cyber-dojo open-sourced?
Yes. The repositories are split across four github organizations:
Can I run my own cyber-dojo server?
Yes. Instructions and scripts for running...
  • on a Kubernetes cluster in a cloud, or on a local minukube are here.
  • on Linux.
  • on Mac.
  • on Windows.
What technologies does cyber-dojo use?
circleci docker github kubernetes ruby
Who are the cyber-dojo Foundation trustees?
Jon Jagger is a software consultant based in England Mike Long is a partner
at Praqma based in Norway
Olve Maudal is a software guru at Equinor based in Norway Seb Rose is an associate with Cucumber.io based in Scotland
What was the inspiration for cyber-dojo?
In 2009 I (Jon) was consulting in Norway. A user-group organized an evening coding-dojo (in a local pub). An exercise, language, and test-framework was picked, and participants split into teams of about 5 people. After ~90 minutes everyone gathered for a review...
  • two teams had nothing to show since they were still trying to install the language and test-framework (using the pub wifi).
  • the other teams spent a long long long time trying to connect their laptops to the projector (Linux, Mac, & Windows).
I became convinced an online coding-dojo was a worthwhile project.
  • practising programming deserves more attention.
  • effective programming is a team activity.
I think there is real benefit not practising in a professional IDE:
  • cyber-dojo is about learning; an IDE, about development.
  • cyber-dojo is for working together; an IDE, alone.
  • cyber-dojo aims to improve skills; an IDE, to finish products.
  • cyber-dojo promotes coding & testing; an IDE, mostly coding.
  • cyber-dojo helps you work slower; an IDE, faster.