I see no reason not to just use Syncthing on its own to sync the files used by orgzly. What exactly are you suggesting here?
It was a general suggestion for syncthing as an alternative or an interim solution as long as webdav syncing is under way. (I modified the title if it was misleading)
What I think would be beneficial is to have Syncthing as a repository, ie. orgzly would set up a directory to store the notebooks, and add that folder to Syncthing either via REST API, or by invoking Syncthing's FolderActivity.
Syncthing is certainly better solution when it comes to personal use, as it doesn't need a server (unlike WebDAV)
If you are using this combination, please be aware of #629 which contains a workaround (at least for older Android versions).
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What I think would be beneficial is to have Syncthing as a repository, ie. orgzly would set up a directory to store the notebooks, and add that folder to Syncthing either via REST API, or by invoking Syncthing's
FolderActivity.Syncthing is certainly better solution when it comes to personal use, as it doesn't need a server (unlike WebDAV)