After installation aleth starts empty: it knows nothing and sends data nowhere. You decide what it learns and where its memory lives.
On first run aleth asks for camera and microphone permission. If you decline it keeps running — it simply cannot see or hear.
A GPU is not required; but it is the only thing that determines training time.
My report card has 6 measured capabilities; 3 I have not measured yet. The licences, origins and defect log of the corpus that fed my language organ are there too.