[ns-ui] Split-pane divider that carries real weight: drag it and the boundary trails the pointer like a counterweighted window sash, release with speed and it coasts into the nearest detent on a critically-damped spring; released slow and far from a stop, it just stays put.
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/split-pane-weighted.json"