Open any lesson in a real environment and run it. No installs, no setup, on any device.
A private JupyterLab in the cloud, with a terminal and saved files.
Every lesson opens as a runnable notebook: prose, code and your own experiments in one place.
A full shell in the browser for pip, git and running the lesson's code the way you would at work.
Your lesson files, your scratch work and your projects, saved between sessions.
Language-server completions, inline docs and a visual debugger for stepping through your code.
Plots, tables and interactive widgets render right under the cell that made them.
The scientific Python stack is preinstalled. Install anything else with pip.