switched to mamba for memory usage

Author: flemk

Dockerfile

@@ -4,28 +4,19 @@ LABEL org.opencontainers.image.source=https://github.com/IMTEK-Simulation/Docker
 
 USER root
 
-# Install basic scientific packages first
-RUN conda install -c conda-forge --yes \
+# Install mamba for faster package resolution
+RUN conda install -c conda-forge mamba --yes
+
+# Use mamba instead of conda for better memory usage
+RUN mamba install -c conda-forge --yes \
     numpy \
     pandas \
     matplotlib \
     scipy \
-    && conda clean -afy
-
-# Install machine learning and visualization packages
-RUN conda install -c conda-forge --yes \
     scikit-learn \
-    pyvista \
-    && conda clean -afy
-
-# Install FeniCS and related packages
-RUN conda install -c conda-forge --yes \
     fenics-dolfinx \
+    pyvista \
     python-gmsh \
-    && conda clean -afy
-
-# Install Jupyter and utility packages
-RUN conda install -c conda-forge --yes \
     jupytext \
     jupyterlab \
     patsy \