chore: build dependencies into distribution tarball

DEVELOPERS.md

@@ -14,5 +14,10 @@ sphinx-build -M html source build -a
 
 # Building standalone DZGUI release binaries
 1. Run `./scripts/dl_pyapp.sh`
-2. Run `python3 scripts/release.py`
-3. Generate a release and tag against the bundled `dzgui` executable
+# TODO: secondary script that packs this archive
+2. Download cpython 3.13, linux, gnu, v3
+https://github.com/astral-sh/python-build-standalone/releases/download/20251014/cpython-3.13.9%2B20251014-x86_64_v3-unknown-linux-gnu-install_only_stripped.tar.gz
+3. Explicitly install dependencies into site-packages
+4. Pack back into a tarball
+5. Run `python3 scripts/release.py`
+6. Generate a release and tag against the bundled `dzgui` executable