Handling data persistence in Tauri + PowerSync

[basicserge]

I'm building a Tauri desktop application using PowerSync web SDK with an optional sync feature. Users can use the app locally and optionally enable cross-device sync later.

Technical setup:

• PowerSync web SDK (using wa-sqlite with IndexedDB persistence)
• Tauri for desktop builds
• Also building for Android using web SDK

Issue:
The IndexedDB data gets reset on each new Tauri app build on MacOS and Android (haven't tested other OS). While launching previous builds, the old IndexedDB storage is still available for that specific build version.

This is particularly problematic for users who haven't enabled sync yet, as their local-only data is lost.

Question:
Is there a recommended approach to persist IndexedDB data across app updates with Tauri? Solutions that work for both desktop and mobile builds would be ideal.

Related: PowerSync Web SDK Documentation