Jupyter book with MyBinder launch button

Question

I published on GitHub pages a Jupyter book that contains launch buttons for MyBinder for Jupyter notebook files.

The _config.yml file contains:

launch_buttons:
    notebook_interface: "jupyterlab"
    binderhub_url: "https://mybinder.org"

I built a static website with the command $ jupyter-book build <directory> then I imported the site on github pages with the command $ ghp_import -n -p -f _build/html.

The problem is that when the notebook is launched in MyBinder, there is the error message

Cannot open
Could not find path: docs/<file_name>.ipynb 
                             Dismiss

Is it possible to set the button (that launches MyBinder) so that to launch MyBinder in the folder of the root (main branch) of the GitHub repository in which the <file_name>.ipynb exists? (i.e., on which the static web site was built)