I made one such tool!

https://github.com/CMahaff/lasim

I know there’s also a python script out there and a new Android app that has active syncing. I don’t have links handy to those on mobile.

You lose comment history and all that jazz too but it’s better than nothing. I’m not sure if devs plan to implement a way to do it but it’s one of the reasons I decided to roll my own instance. Nothing more frustrating than using someone else’s and losing access while they take days to get it back up.