import { generate } from 'react-native-image-generator';

// ...
const r = await generate(
  [
    {
      uri: 'https://picsum.photos/200/300',
      width: 200,
      height: 300,
      x: 0,
      y: 0,
    },
    {
      uri: 'Mario', // named asset or assets file in android
      width: 200,
      height: 300,
      x: 0,
      y: 0,
    },
    {
      text: 'DESIGN',
      fontSize: 23,
      width: 300,
      height: 300,
      x: 50,
      y: 50,
      color: [0, 255, 0, 1.0],
      fontFamily: Platform.OS === 'ios' ? 'Helvetica' : 'Roboto',
    },
  ],
  {
    filename: 'test.png',
    width: 200,
    height: 300,
  }
);