Avoid pip install in every notebook in one project?

In order to run a notebook from the ipyreact JupyterLite demo at https://widgetti.github.io/ipyreact,
it requires the line `%pip install -q ipyreact`.
This is currently needed in every notebook, and I think it would be great if this line would only be needed in one notebook, or even not at all.
Therefore, my question: Is there yet a way to avoid having this line in every notebook using the pyodide kernel?