add environment file

.gitignore

+# IDE
+.idea
+
+# Jupyter
+.ipynb_checkpoints/
+__pycache__/
+
+# LaTeX
+build

environment.yml

+name: Teach_Sample_Lectures
+channels:
+  - conda-forge
+  - defaults
+dependencies:
+  - python=3.11
+  # Jupyter notebook, -lab, and plugins
+  - jupyter
+  - jupyterlab
+  # Scientific stack
+  - matplotlib
+  - numpy
+  - pandas
+  - scipy
+  # grading and testing
+  - pytest
+  - hypothesis
+  # packages from pypi
+  - pip
+  - pip:
+    - jupyterquiz
+    - nbgrader
+    # TODO: Plugins for students
+    - --extra-index-url https://gitlab.ub.uni-giessen.de/api/v4/projects/920/packages/pypi/simple
+    - Pytest-Nbgrader
+    # - nbgrader-jhaas
+    # TODO: Plugins for lecturers
+    - --extra-index-url https://gitlab.ub.uni-giessen.de/api/v4/projects/790/packages/pypi/simple
+    - nbgrader-jupyterquiz
+    # - nbgrader-studip
+    # - nbgrader-make
+    # - nbgrader-feedback
+    # perhaps other custom packages
+variables:
+  COURSE_TITLE: 'Sample Course Lectures'