Why it matters
What if an AI device felt calm — closer to peace than a glowing distraction? Vault is a text-first, dual-display handheld AI terminal built on a single ESP32-S3 and powered by one battery cell. It pairs a fast, emissive OLED "live" surface with a slow, bistable e-paper "content" surface, switches between four modes wit
My takeaway: OpenClaw in Your Hand: Building a Physical AI Terminal - Lech Kalinowski, Callstack is an agent-security signal. The practical read is that autonomy, memory, tool permissions, and third-party integrations are the control surface that needs threat modeling and monitoring.