# Biosignal

Engineering notes kept under `design/biosignal/`.

!!! info "This is the engineering tier"

    These pages are written for contributors, reviewers and researchers rather
    than for people using YazSes. For the user documentation, start at
    [Home](../../index.md).

**2 documents.**

- [Cloud-code handoff — ThinkGear qualification (start with issue #827, then #828)](2026-11-03-coding-agent-handoff.md)
- [ThinkGear first-device engineering roadmap — 2026-11-03](2026-11-03-first-device-roadmap.md)