Fluent 2-styled split button with shadcn-style APIs. Three composable parts (SplitButton, SplitButtonAction, SplitButtonTrigger) join a primary command to an icon-only chevron trigger, sharing variant/size via context and styled through buttonVariants. The chevron composes with the kit DropdownMenu via Base UI's render prop.
pnpm dlx shadcn@latest add "https://fluent2-react-kit.graund.io/r/split-button.json"