Great project. Every once in a while I'm checking it out to see if an easier root method has become available for my vacuum (Roborock S5 Max). But unfortunately it is still quite involved.
I recently bought one well supported by Valetudo (Dreame W10), but when I saw the flash instructions I decided that I'll just run my unit without setting it up with internet access and an account. That works fine, so I'm not really keen on doing the flash anymore.