I Built a Notion Alternative That Works in Airplane Mode. Now Help Me Solve Sync Conflicts

Description and use

Dovli is an offline‑first notes app that syncs via Firebase. Editing the same note offline on laptop and phone leads to sync conflicts. A conflict resolution strategy—last write wins, merge, or user prompt—is needed.

Problem

Users editing the same note offline on multiple devices face sync conflicts when reconnecting; unclear which version should prevail.

Outcome

Dovli offers offline editing and cross‑platform sync, but users need guidance on resolving edit conflicts when multiple devices edit the same note offline.

Workflow

• 1. User edits note on laptop while offline.
• 2. User edits same note on phone while offline.
• 3. Devices reconnect to the internet.
• 4. Conflict arises due to divergent edits.
• 5. Resolve conflict using chosen strategy (last write wins, merge, or user prompt).

Evidence

You edit the same note on your laptop and your phone, both offline. Then you reconnect.

Source

Offline‑first: edits save on your device and sync when you're back online

Source

Which version should win? 1) Last write wins 2) Merge both 3) Ask the user

Source