[ns-ui] A saturation/headroom gauge rendered as an analog tape deck's own AC-bias hysteresis loop instead of a bar or dial: a bright marker rides a closed H/B loop that is narrow and sharp at low drive and widens with rounded corners toward saturation at high drive, its own envelope breathing on a slower in
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/bias-hysteresis.json"