let jupyter = import (builtins.fetchGit { url = https://github.com/tweag/jupyterWith; rev = "10d64ee254050de69d0dc51c9c39fdadf1398c38"; }) {}; ipython = jupyter.kernels.iPythonWith { name = "python"; }; jupyterEnvironment = jupyter.jupyterlabWith { kernels = [ ipython ]; }; in jupyterEnvironment.env