...
import firestore from '@react-native-firebase/firestore';

import { useGetDocs } from 'react-native-firebase-tools';

const postsRef = firestore().collection('posts').limit(6);

export default function App() {
  const { data, loading, end, request } = useGetDocs(postsRef, {
    autoRequest: true,
    pagination: true
  });

  return (
    <ScrollView style={styles.container}>
      {!loading && data.map(post => (
        <View key={post.id}>
          <Text>{post.username}</Text>
          <Image src={{post.photoURL}}>
        </View>
      ))
      <Button
        disabled={end}
        title='Get more'
        onPress={request}
      />
    </ScrollView>
  );
}