LeoW
30
Proton Drive support is possible on Android hopefully soon via a third party app called Round-Sync. I have a request in to the developer to have it added to their synchronization tool.
Round-Sync is an implementation of rclone sync software that's available for Windows Linux and Mac. The program that does the work already supports Proton Drive so it's available on the desktop it just needs to be added to the menu in the Android app and I have a request in on GitHub for that very thing.
The way that it would work is you would set the Joplin for Android app to sync locally to the file system where you will choose the directory.
Round-Sync can be launched quickly whenever you need it. You can create and save tasks so you just press one button and the local database files will synchronize with many cloud providers.
When you're about to use your Android phone and you know that you've made modifications on the desktop that synced to the cloud you simply run the software first and it will do the synchronization just like Joplin would do when you launch the program only it's running outside the program. When it's finished you run Joplin.
Leveraging Rclone would let you synchronize a local database on Windows Linux and Mac to over 50 Cloud providers.
They've already done all the work creating the connection to the cloud providers and have great sync software. On the desktop it's a single executable file that you run with a batch file or script.
There is also a GUI for the desktop only it's no longer under development and can use some improvement. It's called Rclone-browser. This way you can sync with a mouse click.
I maintain a website and use rclone and rclone browser to synchronize the files up and down to the server.