Minor.

apt.txt

@@ -0,0 +1,5 @@
+# System packages (via apt) required for Binder environments (mybinder.org and similar
+# notebook hosting services) to install and run Python dependencies.
+
+# Media processing, used by "pip install mediapy".
+ffmpeg

resampler_notebook.ipynb

@@ -404,7 +404,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install -q autopep8 hhoppe-tools 'jax[cpu]' jupytext matplotlib mediapy mypy \\\n",
+    "!pip install -q autopep8 hhoppe-tools 'jax[cpu]' matplotlib mediapy mypy \\\n",
     "  pdoc Pillow pyink pylint pytest resampler scipy scikit-image tensorflow-cpu torch"
    ]
   },

resampler_notebook.py

@@ -303,7 +303,7 @@
 # !pip list | grep opencv-python >/dev/null || pip install -q opencv-python-headless
 
 # %%
-# !pip install -q autopep8 hhoppe-tools 'jax[cpu]' jupytext matplotlib mediapy mypy \
+# !pip install -q autopep8 hhoppe-tools 'jax[cpu]' matplotlib mediapy mypy \
 #   pdoc Pillow pyink pylint pytest resampler scipy scikit-image tensorflow-cpu torch
 
 # %%