Maybe you can try Resilio Sync (was named BT Sync before) https://www.resilio.com/individuals/#plans https://www.resilio.com/individuals/#plans I am not sure i

Maybe you can try Resilio Sync (was named BT Sync before) https://www.resilio.com/individuals/#plans https://www.resilio.com/individuals/#plans I am not sure if Free version supports limited sharing But I guess you can open a folder for your one-time use then remove it afterward