Flym DecSync is a fork of <a href="https://f-droid.org/packages/net.frju.flym">Flym</a> which adds synchronization using <a href="https://github.com/39aldo39/DecSync">DecSync</a>. To start synchronizing, all you have to do is synchronize the selected DecSync directory, using for example <a href="https://f-droid.org/en/packages/com.nutomic.syncthingandroid">Syncthing</a>.