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README.md

+# U.L.A. Jupyter notebook container image
+
+This is the main Jupyter application container used by
+[U.L.A.](https://ula.inventati.org/). It aims to provide per-user
+JupyterLab application environments, along with a bunch of useful
+pre-installed software packages that users won't have to install
+later, saving time and effort.
+
+It is built on top of a CUDA-enabled, PyTorch-focused [Jupyter Docker
+base image](https://github.com/jupyter/docker-stacks/), with some
+minor additions for the time being.
+
+If you want to add software, note that the container image is very
+strict about users (`NB_USER`) and permissions, so take care to
+[follow the documentation for
+instructions](https://jupyter-docker-stacks.readthedocs.io/en/latest/using/recipes.html#using-mamba-install-recommended-or-pip-install-in-a-child-docker-image).