What about running a NUTS sampler like pymc-devs/nuts-rs in the browser?

See https://ssoudan.github.io/web-nuts-rs/ for a live demo of a Bayesian regression of daily maximum temperature from NOAA Global Historical Climatology Network - Daily (GHCN-D) data all in the browser.

Use the devcontainer to get a ready to use environment.

To run the app in development mode, run:

npm i && npm run serve

To build the app for production, run:

npm i && npm run serve:prod

Either way, you can now navigate to http://localhost:8080 to view the app.