Deploy 100,000 multiplayer checkboxes on Modal with FastHTML

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This example shows how you can deploy a multiplayer checkbox game with FastHTML on Modal.

FastHTML is a Python library built on top of HTMX which allows you to create entire web applications using only Python. For a simpler template for using FastHTML with Modal, check out this example.

Our example is inspired by 1 Million Checkboxes.

Class for tracking state to push out to connected clients

Try this on Modal!

You can run this example on Modal in 60 seconds.

Create account to run

After creating a free account, install the Modal Python package, and create an API token.

Clone the modal-examples repository and run: