Hi Friend! This is an Experiment that is friendly for use in the Experiment Factory. Actually, it's intended to be run within an fmri machine and so running the preview in the browser, you will see instructions to "press your Thumb" and similar that don't make sense for a keyboard. If you want a verison ready to go, we provide a Docker container.
You can run it locally by putting these files in a web server, or use the Experiment Factory to generate a reproducible container. Check out the documentation above for more information, or post an issue if you have any questions.