create-sellflow/templates/basic/lib/storage.ts

Pre-built cross-platform Shopify app template

import { Platform } from "react-native";
import { MMKV } from "react-native-mmkv";

export const storage = new MMKV({
  id: "user",
  ...(Platform.OS !== "web" && {
    encryptionKey: process.env.EXPO_PUBLIC_ENCRYPTION_KEY || "key",
  }),
});