

OP is asking how to prevent abusers from seeing OPs content.
“Blocking” the abuser prevents OP from seeing the abuser’s content. “Blocking” does not prevent the abuser from seeing and interacting with OP’s content.
“Blocking” does not achieve OP’s objective.



Syncthing
Self-hosted. Open source. Your data stays on your own devices. Creates a shared folder on your laptop and your phone. Move a file into that folder on your laptop, and syncthing pushes it to your phone.