diff --git a/jupyterhub.docker b/jupyterhub.docker
index ff3d689..3ddd57c 100644
--- a/jupyterhub.docker
+++ b/jupyterhub.docker
@@ -1,45 +1,48 @@
 FROM debian:bullseye
 MAINTAINER Guillaume Anciaux <guillaume.anciaux@epfl.ch>
 
 
 ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 
 ## for apt to be noninteractive
 ENV DEBIAN_FRONTEND noninteractive
 ENV DEBCONF_NONINTERACTIVE_SEEN true
 
 RUN apt-get -qq update && apt-get install -y cmake cmake-curses-gui build-essential python3-dev libboost-dev libfftw3-dev libgsl-dev gfortran liblapack-dev libopenmpi-dev sharutils git doxygen graphviz python3-pip texlive-latex-base libmumps-dev libscotch-dev && apt -y clean && rm -rf /var/lib/apt/lists/*
 RUN apt-get -qq update && apt-get install -y xsltproc ccache bc libgtest-dev  && apt -y clean && rm -rf /var/lib/apt/lists/*
 RUN apt-get -qq update && apt-get install -y libocct-data-exchange-dev libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev libocct-ocaf-dev && apt -y clean && rm -rf /var/lib/apt/lists/*
 RUN echo "\
 deb http://deb.debian.org/debian testing main contrib non-free" >> /etc/apt/sources.list
 RUN echo "                \   
 Package: *                \
 Pin: release  a=stable    \
 Pin-Priority: 800         \
                           \
 Package: *                \
 Pin: release  a=testing   \
 Pin-Priority: 600         \
 " >> /etc/apt/preferences.d/priorities
 
 RUN apt-get -qq update && apt-get install -t testing -y libgmsh-dev
 
-RUN apt-get update && apt -y install nodejs npm git-lfs && apt -y clean && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt -y install nodejs npm git-lfs libgl1-mesa-glx xvfb imagemagick && apt -y clean && rm -rf /var/lib/apt/lists/*
 RUN apt-get update && apt -y install python3-pip && apt -y clean && rm -rf /var/lib/apt/lists/*
 
 RUN pip3 install jupyterhub
 RUN npm install -g configurable-http-proxy
-RUN pip3 install jupyterlab notebook jupyterlab-git numpy scipy sympy matplotlib pyvista gmsh akantu meshio pep8 tamaas
+# RUN mkdir /repos && cd /repos && git clone https://github.com/InsightSoftwareConsortium/itkwidgets.git
+# RUN cd /repos/itkwidgets && pip install -e .
+RUN pip3 install jupyterlab notebook jupyterlab-git numpy scipy sympy matplotlib pyvista ipyvtklink itkwidgets gmsh akantu meshio pep8 tamaas
 RUN pip3 install git+https://gitlab.com/ganciaux/slides.git
 RUN pip3 install sphinx breathe sphinx-rtd-theme pytest scipy xmltodict meshio pep8
 RUN pip3 install --upgrade setuptools wheel twine
 
 RUN mkdir -p /srv/jupyterhub/
 WORKDIR /srv/jupyterhub/
 RUN ln -sf /dev/stdout /var/log/jupytherhub.log
 RUN mkdir /etc/users && mv /etc/passwd  /etc/users && mv /etc/group /etc/users
-RUN ln -sf /etc/users/passwd /etc/passwd && ln -sf /etc/users/group /etc/group 
+RUN jupyter nbextension install --py itkwidgets
+RUN jupyter nbextension enable itkwidgets --py
 
 CMD ["jupyterhub", "&>>" ,"/var/log/jupyterhub.log"]
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