For general installation and configuration take a look at the react-core-components package.
// App.tsx
import { DBTooltip, DBButton } from "@db-ux/react-core-components";
const App = () => (
<DBButton aria-describedby="tooltip-01">
Hover on me to open Tooltip
<DBTooltip id="tooltip-01">Tooltip</DBTooltip>
</DBButton>
);
export default App;