Please add an option to be able to generate a QR Code and a string which can be scanned or copied and pasted into another Syncthing client and once the other client enters the QR Code/string and chooses a directory, it will receive the files from the sender, once the directories are synced the connection will be deleted.
This will be a good way to share files with friends and family and not have to enter your friends device QR code/string and your friends folder QR code/string and wait for the devices to sync to delete the Syncthing folder and device connection.