diff --git a/.build/Dockerfile b/.build/Dockerfile
index 9dba4af..0328c86 100644
--- a/.build/Dockerfile
+++ b/.build/Dockerfile
@@ -1,5 +1,6 @@
 # Use NVIDIA CUDA as base image and run the same installation as in the other packages.
-FROM nvidia/cuda:10.1-base-ubuntu18.04
+# The version of cudatoolkit must match those of the base image, see Dockerfile.pytorch
+FROM nvidia/cuda:10.2-base-ubuntu18.04
 LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
 
 ############################################################################
@@ -377,9 +378,9 @@ RUN conda install --quiet --yes \
     fix-permissions $CONDA_DIR && \
     fix-permissions /home/$NB_USER
 
-# Install PyTorch
+# Install PyTorch, version of cudatoolkit must match those of the base image
 RUN conda install -y -c pytorch \
-    cudatoolkit=10.1 \
+    cudatoolkit=10.2 \
     'pytorch=1.3.1' \
     torchvision && \
     conda clean --all -f -y && \
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 9dba4af..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,438 +0,0 @@
-# Use NVIDIA CUDA as base image and run the same installation as in the other packages.
-FROM nvidia/cuda:10.1-base-ubuntu18.04
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-
-############################################################################
-#################### Dependency: jupyter/base-image ########################
-############################################################################
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-# Ubuntu 18.04 (bionic)
-# https://hub.docker.com/_/ubuntu/?tab=tags&name=bionic
-ARG ROOT_CONTAINER=ubuntu:bionic-20200112@sha256:bc025862c3e8ec4a8754ea4756e33da6c41cba38330d7e324abd25c8e0b93300
-
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-ARG NB_USER="jovyan"
-ARG NB_UID="1000"
-ARG NB_GID="100"
-
-USER root
-
-# Install all OS dependencies for notebook server that starts but lacks all
-# features (e.g., download as all possible file formats)
-ENV DEBIAN_FRONTEND noninteractive
-RUN apt-get update \
- && apt-get install -yq --no-install-recommends \
-    wget \
-    bzip2 \
-    ca-certificates \
-    sudo \
-    locales \
-    fonts-liberation \
-    run-one \
- && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-RUN echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && \
-    locale-gen
-
-# Configure environment
-ENV CONDA_DIR=/opt/conda \
-    SHELL=/bin/bash \
-    NB_USER=$NB_USER \
-    NB_UID=$NB_UID \
-    NB_GID=$NB_GID \
-    LC_ALL=en_US.UTF-8 \
-    LANG=en_US.UTF-8 \
-    LANGUAGE=en_US.UTF-8
-ENV PATH=$CONDA_DIR/bin:$PATH \
-    HOME=/home/$NB_USER
-
-# Copy a script that we will use to correct permissions after running certain commands
-COPY fix-permissions /usr/local/bin/fix-permissions
-RUN chmod a+rx /usr/local/bin/fix-permissions
-
-# Enable prompt color in the skeleton .bashrc before creating the default NB_USER
-RUN sed -i 's/^#force_color_prompt=yes/force_color_prompt=yes/' /etc/skel/.bashrc
-
-# Create NB_USER wtih name jovyan user with UID=1000 and in the 'users' group
-# and make sure these dirs are writable by the `users` group.
-RUN echo "auth requisite pam_deny.so" >> /etc/pam.d/su && \
-    sed -i.bak -e 's/^%admin/#%admin/' /etc/sudoers && \
-    sed -i.bak -e 's/^%sudo/#%sudo/' /etc/sudoers && \
-    useradd -m -s /bin/bash -N -u $NB_UID $NB_USER && \
-    mkdir -p $CONDA_DIR && \
-    chown $NB_USER:$NB_GID $CONDA_DIR && \
-    chmod g+w /etc/passwd && \
-    fix-permissions $HOME && \
-    fix-permissions "$(dirname $CONDA_DIR)"
-
-USER $NB_UID
-WORKDIR $HOME
-ARG PYTHON_VERSION=default
-
-# Setup work directory for backward-compatibility
-RUN mkdir /home/$NB_USER/work && \
-    fix-permissions /home/$NB_USER
-
-# Install conda as jovyan and check the md5 sum provided on the download site
-ENV MINICONDA_VERSION=4.7.12.1 \
-    MINICONDA_MD5=81c773ff87af5cfac79ab862942ab6b3 \
-    CONDA_VERSION=4.7.12
-
-RUN cd /tmp && \
-    wget --quiet https://repo.continuum.io/miniconda/Miniconda3-${MINICONDA_VERSION}-Linux-x86_64.sh && \
-    echo "${MINICONDA_MD5} *Miniconda3-${MINICONDA_VERSION}-Linux-x86_64.sh" | md5sum -c - && \
-    /bin/bash Miniconda3-${MINICONDA_VERSION}-Linux-x86_64.sh -f -b -p $CONDA_DIR && \
-    rm Miniconda3-${MINICONDA_VERSION}-Linux-x86_64.sh && \
-    echo "conda ${CONDA_VERSION}" >> $CONDA_DIR/conda-meta/pinned && \
-    conda config --system --prepend channels conda-forge && \
-    conda config --system --set auto_update_conda false && \
-    conda config --system --set show_channel_urls true && \
-    if [ ! $PYTHON_VERSION = 'default' ]; then conda install --yes python=$PYTHON_VERSION; fi && \
-    conda list python | grep '^python ' | tr -s ' ' | cut -d '.' -f 1,2 | sed 's/$/.*/' >> $CONDA_DIR/conda-meta/pinned && \
-    conda install --quiet --yes conda && \
-    conda install --quiet --yes pip && \
-    conda update --all --quiet --yes && \
-    conda clean --all -f -y && \
-    rm -rf /home/$NB_USER/.cache/yarn && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Install Tini
-RUN conda install --quiet --yes 'tini=0.18.0' && \
-    conda list tini | grep tini | tr -s ' ' | cut -d ' ' -f 1,2 >> $CONDA_DIR/conda-meta/pinned && \
-    conda clean --all -f -y && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Install Jupyter Notebook, Lab, and Hub
-# Generate a notebook server config
-# Cleanup temporary files
-# Correct permissions
-# Do all this in a single RUN command to avoid duplicating all of the
-# files across image layers when the permissions change
-RUN conda install --quiet --yes \
-    'notebook=6.0.3' \
-    'jupyterhub=1.1.0' \
-    'jupyterlab=1.2.5' && \
-    conda clean --all -f -y && \
-    npm cache clean --force && \
-    jupyter notebook --generate-config && \
-    rm -rf $CONDA_DIR/share/jupyter/lab/staging && \
-    rm -rf /home/$NB_USER/.cache/yarn && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-EXPOSE 8888
-
-# Configure container startup
-ENTRYPOINT ["tini", "-g", "--"]
-CMD ["start-notebook.sh"]
-
-# Copy local files as late as possible to avoid cache busting
-COPY start.sh /usr/local/bin/
-COPY start-notebook.sh /usr/local/bin/
-COPY start-singleuser.sh /usr/local/bin/
-COPY jupyter_notebook_config.py /etc/jupyter/
-
-# Fix permissions on /etc/jupyter as root
-USER root
-RUN fix-permissions /etc/jupyter/
-
-# Switch back to jovyan to avoid accidental container runs as root
-USER $NB_UID
-
-############################################################################
-################# Dependency: jupyter/minimal-notebook #####################
-############################################################################
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-
-USER root
-
-# Install all OS dependencies for fully functional notebook server
-RUN apt-get update && apt-get install -yq --no-install-recommends \
-    build-essential \
-    emacs \
-    git \
-    inkscape \
-    jed \
-    libsm6 \
-    libxext-dev \
-    libxrender1 \
-    lmodern \
-    netcat \
-    python-dev \
-    # ---- nbconvert dependencies ----
-    texlive-xetex \
-    texlive-fonts-recommended \
-    texlive-generic-recommended \
-    # Optional dependency
-    texlive-fonts-extra \
-    # ----
-    tzdata \
-    unzip \
-    nano \
-    && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Switch back to jovyan to avoid accidental container runs as root
-USER $NB_UID
-
-############################################################################
-################# Dependency: jupyter/scipy-notebook #######################
-############################################################################
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-
-USER root
-
-# ffmpeg for matplotlib anim
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends ffmpeg && \
-    rm -rf /var/lib/apt/lists/*
-
-USER $NB_UID
-
-# Install Python 3 packages
-RUN conda install --quiet --yes \
-    'beautifulsoup4=4.8.*' \
-    'conda-forge::blas=*=openblas' \
-    'bokeh=1.4.*' \
-    'cloudpickle=1.2.*' \
-    'cython=0.29.*' \
-    'dask=2.9.*' \
-    'dill=0.3.*' \
-    'h5py=2.10.*' \
-    'hdf5=1.10.*' \
-    'ipywidgets=7.5.*' \
-    'matplotlib-base=3.1.*' \
-    'numba=0.48.*' \
-    'numexpr=2.7.*' \
-    'pandas=0.25.*' \
-    'patsy=0.5.*' \
-    'protobuf=3.11.*' \
-    'scikit-image=0.16.*' \
-    'scikit-learn=0.22.*' \
-    'scipy=1.4.*' \
-    'seaborn=0.9.*' \
-    'sqlalchemy=1.3.*' \
-    'statsmodels=0.11.*' \
-    'sympy=1.5.*' \
-    'vincent=0.4.*' \
-    'xlrd' \
-    && \
-    conda clean --all -f -y && \
-    # Activate ipywidgets extension in the environment that runs the notebook server
-    jupyter nbextension enable --py widgetsnbextension --sys-prefix && \
-    # Also activate ipywidgets extension for JupyterLab
-    # Check this URL for most recent compatibilities
-    # https://github.com/jupyter-widgets/ipywidgets/tree/master/packages/jupyterlab-manager
-    jupyter labextension install @jupyter-widgets/jupyterlab-manager@^1.0.1 --no-build && \
-    jupyter labextension install jupyterlab_bokeh@1.0.0 --no-build && \
-    jupyter lab build && \
-    npm cache clean --force && \
-    rm -rf $CONDA_DIR/share/jupyter/lab/staging && \
-    rm -rf /home/$NB_USER/.cache/yarn && \
-    rm -rf /home/$NB_USER/.node-gyp && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Install facets which does not have a pip or conda package at the moment
-RUN cd /tmp && \
-    git clone https://github.com/PAIR-code/facets.git && \
-    cd facets && \
-    jupyter nbextension install facets-dist/ --sys-prefix && \
-    cd && \
-    rm -rf /tmp/facets && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Import matplotlib the first time to build the font cache.
-ENV XDG_CACHE_HOME /home/$NB_USER/.cache/
-RUN MPLBACKEND=Agg python -c "import matplotlib.pyplot" && \
-    fix-permissions /home/$NB_USER
-
-USER $NB_UID
-
-############################################################################
-################ Dependency: jupyter/datascience-notebook ##################
-############################################################################
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-
-# Set when building on Travis so that certain long-running build steps can
-# be skipped to shorten build time.
-ARG TEST_ONLY_BUILD
-
-USER root
-
-# R pre-requisites
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    fonts-dejavu \
-    gfortran \
-    gcc && \
-    rm -rf /var/lib/apt/lists/*
-
-# Julia dependencies
-# install Julia packages in /opt/julia instead of $HOME
-ENV JULIA_DEPOT_PATH=/opt/julia
-ENV JULIA_PKGDIR=/opt/julia
-ENV JULIA_VERSION=1.3.1
-
-RUN mkdir /opt/julia-${JULIA_VERSION} && \
-    cd /tmp && \
-    wget -q https://julialang-s3.julialang.org/bin/linux/x64/`echo ${JULIA_VERSION} | cut -d. -f 1,2`/julia-${JULIA_VERSION}-linux-x86_64.tar.gz && \
-    echo "faa707c8343780a6fe5eaf13490355e8190acf8e2c189b9e7ecbddb0fa2643ad *julia-${JULIA_VERSION}-linux-x86_64.tar.gz" | sha256sum -c - && \
-    tar xzf julia-${JULIA_VERSION}-linux-x86_64.tar.gz -C /opt/julia-${JULIA_VERSION} --strip-components=1 && \
-    rm /tmp/julia-${JULIA_VERSION}-linux-x86_64.tar.gz
-RUN ln -fs /opt/julia-*/bin/julia /usr/local/bin/julia
-
-# Show Julia where conda libraries are \
-RUN mkdir /etc/julia && \
-    echo "push!(Libdl.DL_LOAD_PATH, \"$CONDA_DIR/lib\")" >> /etc/julia/juliarc.jl && \
-    # Create JULIA_PKGDIR \
-    mkdir $JULIA_PKGDIR && \
-    chown $NB_USER $JULIA_PKGDIR && \
-    fix-permissions $JULIA_PKGDIR
-
-USER $NB_UID
-
-# R packages including IRKernel which gets installed globally.
-RUN conda install --quiet --yes \
-    'r-base=3.6.2' \
-    'r-caret=6.0*' \
-    'r-crayon=1.3*' \
-    'r-devtools=2.2*' \
-    'r-forecast=8.10*' \
-    'r-hexbin=1.28*' \
-    'r-htmltools=0.4*' \
-    'r-htmlwidgets=1.5*' \
-    'r-irkernel=1.1*' \
-    'r-nycflights13=1.0*' \
-    'r-plyr=1.8*' \
-    'r-randomforest=4.6*' \
-    'r-rcurl=1.98*' \
-    'r-reshape2=1.4*' \
-    'r-rmarkdown=2.1*' \
-    'r-rsqlite=2.1*' \
-    'r-shiny=1.3*' \
-    'r-tidyverse=1.3*' \
-    'rpy2=3.1*' \
-    && \
-    conda clean --all -f -y && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Add Julia packages. Only add HDF5 if this is not a test-only build since
-# it takes roughly half the entire build time of all of the images on Travis
-# to add this one package and often causes Travis to timeout.
-#
-# Install IJulia as jovyan and then move the kernelspec out
-# to the system share location. Avoids problems with runtime UID change not
-# taking effect properly on the .local folder in the jovyan home dir.
-RUN julia -e 'import Pkg; Pkg.update()' && \
-    (test $TEST_ONLY_BUILD || julia -e 'import Pkg; Pkg.add("HDF5")') && \
-    julia -e "using Pkg; pkg\"add IJulia\"; pkg\"precompile\"" && \
-    # move kernelspec out of home \
-    mv $HOME/.local/share/jupyter/kernels/julia* $CONDA_DIR/share/jupyter/kernels/ && \
-    chmod -R go+rx $CONDA_DIR/share/jupyter && \
-    rm -rf $HOME/.local && \
-    fix-permissions $JULIA_PKGDIR $CONDA_DIR/share/jupyter
-
-############################################################################
-################ Dependency: jupyter/tensorflow-notebook ###################
-############################################################################
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"
-
-# Install Tensorflow
-RUN pip install --quiet \
-    'tensorflow==2.1.0' && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-############################################################################
-########################## Dependency: pytorch #############################
-############################################################################
-
-# Install PyTorch dependencies
-RUN conda install --quiet --yes \
-    pyyaml mkl mkl-include setuptools cmake cffi typing && \
-    conda clean --all -f -y && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-# Install PyTorch
-RUN conda install -y -c pytorch \
-    cudatoolkit=10.1 \
-    'pytorch=1.3.1' \
-    torchvision && \
-    conda clean --all -f -y && \
-    fix-permissions $CONDA_DIR && \
-    fix-permissions /home/$NB_USER
-
-############################################################################
-############################ Useful packages ###############################
-############################################################################
-
-# Update conda
-RUN conda update -n base conda -y
-
-USER root
-
-# Install elasticsearch libs
-USER root
-RUN apt-get update \
- && curl -sL https://repo1.maven.org/maven2/org/elasticsearch/elasticsearch-hadoop/6.8.1/elasticsearch-hadoop-6.8.1.jar
-RUN pip install --no-cache-dir elasticsearch==7.1.0
-
-# Install rpy2 to share data between Python and R
-RUN conda install rpy2=2.9.4 plotly=4.4.1
-RUN conda install -c conda-forge ipyleaflet
-
-# Install important packages and Graphviz
-RUN set -ex \
- && buildDeps=' \
-    graphviz==0.11 \
-' \
- && apt-get update \
- && apt-get -y install htop apt-utils graphviz libgraphviz-dev \
- && pip install --no-cache-dir $buildDeps
-
-# Install various extensions
-RUN jupyter labextension install @jupyterlab/github
-RUN jupyter labextension install jupyterlab-drawio
-RUN jupyter labextension install jupyter-leaflet
-RUN jupyter labextension install @jupyterlab/plotly-extension
-RUN jupyter labextension install @jupyter-widgets/jupyterlab-manager
-RUN pip install --no-cache-dir jupyter-tabnine==1.0.2  && \
-  jupyter nbextension install --py jupyter_tabnine && \
-  jupyter nbextension enable --py jupyter_tabnine && \
-  jupyter serverextension enable --py jupyter_tabnine
-RUN fix-permissions $CONDA_DIR
-RUN conda install -c conda-forge jupyter_contrib_nbextensions && \
-  conda install -c conda-forge jupyter_nbextensions_configurator && \
-  jupyter nbextension enable codefolding/main
-RUN jupyter labextension install @ijmbarr/jupyterlab_spellchecker
-
-# Copying config and fix permissions
-COPY jupyter_notebook_config.json /etc/jupyter/
-RUN fix-permissions /home/$NB_USER
-
-# Switch back to jovyan to avoid accidental container runs as root
-USER $NB_UID
diff --git a/README.md b/README.md
index 39788d9..0c01c24 100644
--- a/README.md
+++ b/README.md
@@ -52,8 +52,8 @@ this to deploy the `GPU-Jupyter` via docker-compose (under-the-hood):
   ./start-local.sh -p 8888  # where -p stands for the port of the service
   ```
   
-**Both options will run *GPU-Jupyter* by default on [localhost:8888](http://localhost:8888) with the default 
-password `asdf`**.
+Both options will run *GPU-Jupyter* by default on [localhost:8888](http://localhost:8888) with the default 
+password `asdf`.
 
 
 ## Tracing
diff --git a/fix-permissions b/fix-permissions
deleted file mode 100644
index 659b276..0000000
--- a/fix-permissions
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/bin/bash
-# set permissions on a directory
-# after any installation, if a directory needs to be (human) user-writable,
-# run this script on it.
-# It will make everything in the directory owned by the group $NB_GID
-# and writable by that group.
-# Deployments that want to set a specific user id can preserve permissions
-# by adding the `--group-add users` line to `docker run`.
-
-# uses find to avoid touching files that already have the right permissions,
-# which would cause massive image explosion
-
-# right permissions are:
-# group=$NB_GID
-# AND permissions include group rwX (directory-execute)
-# AND directories have setuid,setgid bits set
-
-set -e
-
-for d in "$@"; do
-  find "$d" \
-    ! \( \
-      -group $NB_GID \
-      -a -perm -g+rwX  \
-    \) \
-    -exec chgrp $NB_GID {} \; \
-    -exec chmod g+rwX {} \;
-  # setuid,setgid *on directories only*
-  find "$d" \
-    \( \
-        -type d \
-        -a ! -perm -6000  \
-    \) \
-    -exec chmod +6000 {} \;
-done
diff --git a/generate_Dockerfile.sh b/generate_Dockerfile.sh
index 778ffdd..5546207 100755
--- a/generate_Dockerfile.sh
+++ b/generate_Dockerfile.sh
@@ -76,7 +76,7 @@ echo "
 cat src/Dockerfile.usefulpackages >> $DOCKERFILE
 
 # Copy the content from the build directory to .
-cp $(find $(dirname $DOCKERFILE) -type f | grep -v $STACKS_DIR | grep -v .gitkeep) .
+#cp $(find $(dirname $DOCKERFILE) -type f | grep -v $STACKS_DIR | grep -v .gitkeep) .
 
 echo "GPU Dockerfile was generated sucessfully in file ${DOCKERFILE} and copied with build files to $(pwd)"
 echo "Run 'bash run_Dockerfile.sh -p [PORT]' to start the GPU-based Juyterlab instance."
diff --git a/jupyter_notebook_config.json b/jupyter_notebook_config.json
deleted file mode 100644
index d7d0959..0000000
--- a/jupyter_notebook_config.json
+++ /dev/null
@@ -1,6 +0,0 @@
-
-{
-  "NotebookApp": {
-    "password": "sha1:e49e73b0eb0e:32edae7a5fd119045e699a0bd04f90819ca90cd6"
-  }
-}
diff --git a/jupyter_notebook_config.py b/jupyter_notebook_config.py
deleted file mode 100644
index 15ac96a..0000000
--- a/jupyter_notebook_config.py
+++ /dev/null
@@ -1,55 +0,0 @@
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-from jupyter_core.paths import jupyter_data_dir
-import subprocess
-import os
-import errno
-import stat
-
-c = get_config()
-c.NotebookApp.ip = '0.0.0.0'
-c.NotebookApp.port = 8888
-c.NotebookApp.open_browser = False
-
-# https://github.com/jupyter/notebook/issues/3130
-c.FileContentsManager.delete_to_trash = False
-
-# Generate a self-signed certificate
-if 'GEN_CERT' in os.environ:
-    dir_name = jupyter_data_dir()
-    pem_file = os.path.join(dir_name, 'notebook.pem')
-    try:
-        os.makedirs(dir_name)
-    except OSError as exc:  # Python >2.5
-        if exc.errno == errno.EEXIST and os.path.isdir(dir_name):
-            pass
-        else:
-            raise
-
-    # Generate an openssl.cnf file to set the distinguished name
-    cnf_file = os.path.join(os.getenv('CONDA_DIR', '/usr/lib'), 'ssl', 'openssl.cnf')
-    if not os.path.isfile(cnf_file):
-        with open(cnf_file, 'w') as fh:
-            fh.write('''\
-[req]
-distinguished_name = req_distinguished_name
-[req_distinguished_name]
-''')
-
-    # Generate a certificate if one doesn't exist on disk
-    subprocess.check_call(['openssl', 'req', '-new',
-                           '-newkey', 'rsa:2048',
-                           '-days', '365',
-                           '-nodes', '-x509',
-                           '-subj', '/C=XX/ST=XX/L=XX/O=generated/CN=generated',
-                           '-keyout', pem_file,
-                           '-out', pem_file])
-    # Restrict access to the file
-    os.chmod(pem_file, stat.S_IRUSR | stat.S_IWUSR)
-    c.NotebookApp.certfile = pem_file
-
-# Change default umask for all subprocesses of the notebook server if set in
-# the environment
-if 'NB_UMASK' in os.environ:
-    os.umask(int(os.environ['NB_UMASK'], 8))
\ No newline at end of file
diff --git a/start-notebook.sh b/start-notebook.sh
deleted file mode 100644
index ed6d066..0000000
--- a/start-notebook.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/bash
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-set -e
-
-wrapper=""
-if [[ "${RESTARTABLE}" == "yes" ]]; then
-  wrapper="run-one-constantly"
-fi
-
-if [[ ! -z "${JUPYTERHUB_API_TOKEN}" ]]; then
-  # launched by JupyterHub, use single-user entrypoint
-  exec /usr/local/bin/start-singleuser.sh "$@"
-elif [[ ! -z "${JUPYTER_ENABLE_LAB}" ]]; then
-  . /usr/local/bin/start.sh $wrapper jupyter lab "$@"
-else
-  . /usr/local/bin/start.sh $wrapper jupyter notebook "$@"
-fi
diff --git a/start-singleuser.sh b/start-singleuser.sh
deleted file mode 100644
index 8cb8cae..0000000
--- a/start-singleuser.sh
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/bin/bash
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-set -e
-
-# set default ip to 0.0.0.0
-if [[ "$NOTEBOOK_ARGS $@" != *"--ip="* ]]; then
-  NOTEBOOK_ARGS="--ip=0.0.0.0 $NOTEBOOK_ARGS"
-fi
-
-# handle some deprecated environment variables
-# from DockerSpawner < 0.8.
-# These won't be passed from DockerSpawner 0.9,
-# so avoid specifying --arg=empty-string
-if [ ! -z "$NOTEBOOK_DIR" ]; then
-  NOTEBOOK_ARGS="--notebook-dir='$NOTEBOOK_DIR' $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_PORT" ]; then
-  NOTEBOOK_ARGS="--port=$JPY_PORT $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_USER" ]; then
-  NOTEBOOK_ARGS="--user=$JPY_USER $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_COOKIE_NAME" ]; then
-  NOTEBOOK_ARGS="--cookie-name=$JPY_COOKIE_NAME $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_BASE_URL" ]; then
-  NOTEBOOK_ARGS="--base-url=$JPY_BASE_URL $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_HUB_PREFIX" ]; then
-  NOTEBOOK_ARGS="--hub-prefix=$JPY_HUB_PREFIX $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JPY_HUB_API_URL" ]; then
-  NOTEBOOK_ARGS="--hub-api-url=$JPY_HUB_API_URL $NOTEBOOK_ARGS"
-fi
-if [ ! -z "$JUPYTER_ENABLE_LAB" ]; then
-  NOTEBOOK_BIN="jupyter labhub"
-else
-  NOTEBOOK_BIN="jupyterhub-singleuser"
-fi
-
-. /usr/local/bin/start.sh $NOTEBOOK_BIN $NOTEBOOK_ARGS "$@"
diff --git a/start.sh b/start.sh
deleted file mode 100644
index da6905b..0000000
--- a/start.sh
+++ /dev/null
@@ -1,147 +0,0 @@
-#!/bin/bash
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-set -e
-
-# Exec the specified command or fall back on bash
-if [ $# -eq 0 ]; then
-    cmd=( "bash" )
-else
-    cmd=( "$@" )
-fi
-
-run-hooks () {
-    # Source scripts or run executable files in a directory
-    if [[ ! -d "$1" ]] ; then
-        return
-    fi
-    echo "$0: running hooks in $1"
-    for f in "$1/"*; do
-        case "$f" in
-            *.sh)
-                echo "$0: running $f"
-                source "$f"
-                ;;
-            *)
-                if [[ -x "$f" ]] ; then
-                    echo "$0: running $f"
-                    "$f"
-                else
-                    echo "$0: ignoring $f"
-                fi
-                ;;
-        esac
-    done
-    echo "$0: done running hooks in $1"
-}
-
-run-hooks /usr/local/bin/start-notebook.d
-
-# Handle special flags if we're root
-if [ $(id -u) == 0 ] ; then
-
-    # Only attempt to change the jovyan username if it exists
-    if id jovyan &> /dev/null ; then
-        echo "Set username to: $NB_USER"
-        usermod -d /home/$NB_USER -l $NB_USER jovyan
-    fi
-
-    # Handle case where provisioned storage does not have the correct permissions by default
-    # Ex: default NFS/EFS (no auto-uid/gid)
-    if [[ "$CHOWN_HOME" == "1" || "$CHOWN_HOME" == 'yes' ]]; then
-        echo "Changing ownership of /home/$NB_USER to $NB_UID:$NB_GID with options '${CHOWN_HOME_OPTS}'"
-        chown $CHOWN_HOME_OPTS $NB_UID:$NB_GID /home/$NB_USER
-    fi
-    if [ ! -z "$CHOWN_EXTRA" ]; then
-        for extra_dir in $(echo $CHOWN_EXTRA | tr ',' ' '); do
-            echo "Changing ownership of ${extra_dir} to $NB_UID:$NB_GID with options '${CHOWN_EXTRA_OPTS}'"
-            chown $CHOWN_EXTRA_OPTS $NB_UID:$NB_GID $extra_dir
-        done
-    fi
-
-    # handle home and working directory if the username changed
-    if [[ "$NB_USER" != "jovyan" ]]; then
-        # changing username, make sure homedir exists
-        # (it could be mounted, and we shouldn't create it if it already exists)
-        if [[ ! -e "/home/$NB_USER" ]]; then
-            echo "Relocating home dir to /home/$NB_USER"
-            mv /home/jovyan "/home/$NB_USER" || ln -s /home/jovyan "/home/$NB_USER"
-        fi
-        # if workdir is in /home/jovyan, cd to /home/$NB_USER
-        if [[ "$PWD/" == "/home/jovyan/"* ]]; then
-            newcwd="/home/$NB_USER/${PWD:13}"
-            echo "Setting CWD to $newcwd"
-            cd "$newcwd"
-        fi
-    fi
-
-    # Change UID:GID of NB_USER to NB_UID:NB_GID if it does not match
-    if [ "$NB_UID" != $(id -u $NB_USER) ] || [ "$NB_GID" != $(id -g $NB_USER) ]; then
-        echo "Set user $NB_USER UID:GID to: $NB_UID:$NB_GID"
-        if [ "$NB_GID" != $(id -g $NB_USER) ]; then
-            groupadd -g $NB_GID -o ${NB_GROUP:-${NB_USER}}
-        fi
-        userdel $NB_USER
-        useradd --home /home/$NB_USER -u $NB_UID -g $NB_GID -G 100 -l $NB_USER
-    fi
-
-    # Enable sudo if requested
-    if [[ "$GRANT_SUDO" == "1" || "$GRANT_SUDO" == 'yes' ]]; then
-        echo "Granting $NB_USER sudo access and appending $CONDA_DIR/bin to sudo PATH"
-        echo "$NB_USER ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/notebook
-    fi
-
-    # Add $CONDA_DIR/bin to sudo secure_path
-    sed -r "s#Defaults\s+secure_path=\"([^\"]+)\"#Defaults secure_path=\"\1:$CONDA_DIR/bin\"#" /etc/sudoers | grep secure_path > /etc/sudoers.d/path
-
-    # Exec the command as NB_USER with the PATH and the rest of
-    # the environment preserved
-    run-hooks /usr/local/bin/before-notebook.d
-    echo "Executing the command: ${cmd[@]}"
-    exec sudo -E -H -u $NB_USER PATH=$PATH XDG_CACHE_HOME=/home/$NB_USER/.cache PYTHONPATH=${PYTHONPATH:-} "${cmd[@]}"
-else
-    if [[ "$NB_UID" == "$(id -u jovyan)" && "$NB_GID" == "$(id -g jovyan)" ]]; then
-        # User is not attempting to override user/group via environment
-        # variables, but they could still have overridden the uid/gid that
-        # container runs as. Check that the user has an entry in the passwd
-        # file and if not add an entry.
-        STATUS=0 && whoami &> /dev/null || STATUS=$? && true
-        if [[ "$STATUS" != "0" ]]; then
-            if [[ -w /etc/passwd ]]; then
-                echo "Adding passwd file entry for $(id -u)"
-                cat /etc/passwd | sed -e "s/^jovyan:/nayvoj:/" > /tmp/passwd
-                echo "jovyan:x:$(id -u):$(id -g):,,,:/home/jovyan:/bin/bash" >> /tmp/passwd
-                cat /tmp/passwd > /etc/passwd
-                rm /tmp/passwd
-            else
-                echo 'Container must be run with group "root" to update passwd file'
-            fi
-        fi
-
-        # Warn if the user isn't going to be able to write files to $HOME.
-        if [[ ! -w /home/jovyan ]]; then
-            echo 'Container must be run with group "users" to update files'
-        fi
-    else
-        # Warn if looks like user want to override uid/gid but hasn't
-        # run the container as root.
-        if [[ ! -z "$NB_UID" && "$NB_UID" != "$(id -u)" ]]; then
-            echo 'Container must be run as root to set $NB_UID'
-        fi
-        if [[ ! -z "$NB_GID" && "$NB_GID" != "$(id -g)" ]]; then
-            echo 'Container must be run as root to set $NB_GID'
-        fi
-    fi
-
-    # Warn if looks like user want to run in sudo mode but hasn't run
-    # the container as root.
-    if [[ "$GRANT_SUDO" == "1" || "$GRANT_SUDO" == 'yes' ]]; then
-        echo 'Container must be run as root to grant sudo permissions'
-    fi
-
-    # Execute the command
-    run-hooks /usr/local/bin/before-notebook.d
-    echo "Executing the command: ${cmd[@]}"
-    exec "${cmd[@]}"
-fi