postBuild

ipython kernel install --name widgets-tutorial --display-name widgets-tutorial --sys-prefix

jupyter labextension install @jupyter-widgets/jupyterlab-manager @jupyter-widgets/jupyterlab-sidecar bqplot jupyter-threejs jupyter-leaflet@0.12.6 ipysheet ipytree ipycanvas jupyter-matplotlib jupyter-vuetify ipyvolume --no-build
jupyter lab build --minimize=False