add extra dependencies to netlify build
restore_home_cache ".cache" "pip cache" &&
restore_cwd_cache '.venv' 'python virtualenv' &&
pip3 install -q poetry &&
-poetry install -vvv --no-dev -E docs &&
+poetry install -vvv --no-dev -E docs -E library -E labs &&
poetry run sphinx-build -W docs docs/_build/html
"""
