According to the All-Russian Open-Source Project Competition https://foss.kruzhok.org/
Automatic code task verification
Everything is done through a graphical web interface
Your only task is to find a device.
Can be deployed in a closed environment
The project is open-source—anyone can contribute their own additions
The project is actively developed, and the creators are ready to answer all your questions
Add custom languages, flexible competition settings
Check demo
With Codebattles