remove npm

Dockerfile

@@ -12,10 +12,12 @@ RUN apt-get update --yes && \
     # - bzip2 is necessary to extract the micromamba executable.
     bzip2 \
     ca-certificates \
+    ffmpeg  \
     git \
     git-lfs \
     locales \
     curl \
+    libportaudio2  \
     dnsutils \
     sudo \
     nano \
@@ -112,8 +114,8 @@ RUN CONDA_OVERRIDE_CUDA="11.2" conda install tensorflow-gpu==2.11.0 -c conda-for
 RUN CONDA_OVERRIDE_CUDA="11.2" conda install -c conda-forge pytorch-gpu
 WORKDIR /tmp
 RUN mamba install --quiet --yes \
-  #  'mathjax' \
-  #  'voila' \
+    'mathjax' \
+    'voila' \
     'jupyterlab-git' \
     'numba' \
     'cython' \
@@ -126,7 +128,7 @@ RUN mamba install --quiet --yes \
     'ipywebrtc' && \
     jupyter notebook --generate-config && \
     mamba clean --all -f -y && \
-    npm cache clean --force && \
+  #  npm cache clean --force && \
     jupyter lab clean && \
     rm -rf "/home/${NB_USER}/.cache/yarn" && \
     fix-permissions "${CONDA_DIR}" && \