For general installation and configuration take a look at the v-core-components package.
<!-- App.vue -->
<script>
import { DBTooltip, DBButton } from "@db-ux/v-core-components";
</script>
<template>
<DBButton aria-describedby="tooltip-01">
Hover on me to open Tooltip
<DBTooltip id="tooltip-01">Tooltip</DBTooltip>
</DBButton>
</template>