The addMutationListener triggers whenever there is a mutation. The addFlushListener triggers whenever Overmind tells components to render again. It can have multiple mutations related to it.
{% tabs %} {% tab title="overmind/actions.js" %}
export const onInitializeOvermind = async ({ state, effects }, overmind) => {
overmind.addFlushListener(effects.history.addMutations)
}{% endtab %} {% endtabs %}