Compile to bytecode in parallel for multiple optimization levels

Author: egparedes

docs/guides/storage.md

@@ -85,7 +85,7 @@ uv pip install --link-mode=copy torch torchvision torchaudio \
     --index-url https://download.pytorch.org/whl/cu126
 # optionally, to reduce the import times, precompile all
 # python modules to bytecode before creating the squashfs image
-python -m compileall .venv/lib/python3.12/site-packages
+python -m compileall -j 8 -o 1 -o 2 .venv/lib/python3.12/site-packages
 ```
 
 #### Step 2: make a squashfs image of the virtual environment