Summarises hardware, all repo files and their status, what still needs
to be written (walkthrough-phases-10-12.md and complete-walkthrough.md),
detailed notes on what phases 10-12 should cover, and key facts/gotchas
for whoever picks this up next.
https://claude.ai/code/session_01TxTSnxDjgEVuNztdsWQjMD
