Copy xvfb-run-safe to your non graphical env box
sudo mv xvfb-run-safe /usr/local/bin/xvfb-run-safe
sudo chmod a+x /usr/local/bin/xvfb-run-safe
Set XVFB_RUN_LOCATION to xvfb-run-safe
A Django wrapper to generate PDF from URL, HTML or Markdown files.
pip install django-electron-pdf==0.5
sudo mv xvfb-run-safe /usr/local/bin/xvfb-run-safe
sudo chmod a+x /usr/local/bin/xvfb-run-safe
Set XVFB_RUN_LOCATION to xvfb-run-safe