A deliberate yes to something that cannot be undone: the segmented control's track and a raised thumb to slide to the end. The thumb follows the finger one to one, springs back on the responsive tier if let go early, and confirms at the end with a check. The thumb is also a button: Enter, Space or a screen reader confirms, a mouse click alone does not.
pnpm dlx shadcn@latest add "https://littmd.vercel.app/r/slide-confirm.json"