Show HN: Open-source in-browser code editor/executor with REPL, 10+ languages

I am super excited to open-source the code executor behind logicboard.com - an in-browser collaborative code editor.

The backend is written in Elixir+Phoenix and implements a WebSocket API to execute code in docker containers.

Next steps include making this more secure, I am considering Google's gVisor to implement better isolation between containers and the host kernel.