HN: The tech behind an AI that stays (memory, encryption, no coldstart)

Most AI companions are short-term listeners - forgetful, generic, and reliant on cloud-heavy processing. With WTMF, we wanted to build an AI that actually stays, remembers you, protects your privacy, and never ghosts. Here's what powers that: Vector-based memory to retain emotional context over long arcs (no cold starts, no "sorry, who dis?")

On-device encryption for sensitive journaling and mood data nothing leaves without consent

Zero cold start latency via prewarmed personality modules and local memory caching

Multi-mode personality tuning, with fine grained sliders (sassy, soft, zen, chaotic-neutral)

All built with a deep respect for privacy Ask me anything about the architecture, memory design, or privacy stack. https://wtmf.ai