Main changed install.py without the launcher index, so --add-app
refused every launcher and nine tests failed on main itself. The demo
script added a list without a type, and an archive-size test still
built the data-tree refs without the needed flag the builder reads.
scripts/make_demo.py builds an ArkOS card under tmp/demo/, mounts it in a
user mount namespace, serves the checkout on loopback and runs
docs_assets/demo/install.tape with VHS, then encodes the GIF, WebM, MP4
and poster and holds them to their size targets.
Abdessamad Derraz