[myu701]

It's on the way. Not done just yet. TL;DR: watch this page: https://github.com/syncthing/syncthing/wiki/Untrusted-device...

Short history:

There was 1 attempt to do it which ended with nothing

https://github.com/syncthing/syncthing/issues/109

https://github.com/syncthing/syncthing/pull/4331

Then there was a follow-up PR (which I was downright giddy to discover): https://github.com/syncthing/syncthing/pull/6214

That PR was just closed yesterday in favor of https://github.com/syncthing/syncthing/pull/6727 which is where the current flame of hope burns.