This is less of a show and tell about something built in mojo and more about how to build something with mojo. Maybe a new topic type would be useful?

tl;dr;

• Server URL https://playground.modular.com/user/{USERNAME} e.g https://playground.modular.com/user/shawnmorel@gmail.com
• Server Token You can generate a token at https://playground.modular.com/hub/token

Note: I was able to get this working with Data Spell but not VSCode. I'm not as fluent with VSCode and in my experience with VSCode's Jupyter integration is that I tend to experience errors that don't get logged anywhere. It's probably something on my end. If someone can comment about VSCode working that would be great.

Connecting to Jupyter Hub

Until there's a standalone toolchain we can run on our hardware, mojo code runs in Modular's mojo playground. Even once there's a standalone toolchain, hosted environments are convenient.

If you're like me, without a bunch of Jupyter Lab extensions and configurations, I find the out of box Jupyter Lab editing experience painful. I also want to be able to use all my editor settings, auto-complete and GitHub Copilot. Thankfully, the mojo playground is hosted using Jupyter Hub. Many IDEs and editors like VSCode, DataSpell, and PyCharm can connect to Jupyter Hub via its API.

• Server URL https://playground.modular.com/user/{USERNAME} e.g https://playground.modular.com/user/shawnmorel@gmail.com
• Server Token You can generate a token at https://playground.modular.com/hub/token
  • You can get here in the Jupyter Lab UI from File > Hub Control Panel https://playground.modular.com/hub/home

Follow your IDE or editor workflow to connect to a remote Jupyter server

• Data Spell https://www.jetbrains.com/help/dataspell/configuring-jupyter-notebook.html Data Spell should even be able to automate fetching the token for you but you can always generate a token manually
• VSCode https://code.visualstudio.com/docs/datascience/jupyter-notebooks#_connect-to-a-remote-jupyter-server