React Native tab view inside a scrollview

expo demo

I'm trying to use react-native-tab-view with scrollable content, but having the tabview start half way down a scrollable page like:

    <View style={{flex: 1}}>
      <ScrollView style={{flex: 1}}>
        <SomeContent />
        <TabView
            navigationState={{ index, routes }}
            renderScene={renderScene}
            onIndexChange={setIndex}
            initialLayout={initialLayout}
            style={{flex: 1}}
        />
      </ScrollView>
    </View>

However when I run this on ios nothing renders below the tabs. If I remove the top level scrollview then the whole thing will render but obviously only the tab itself is scrollable.

Any advice would be appreciated