Below is my step by step process to migrate from my Polisy Pro on 6.0.5 to eisy lite. I welcome any feedback if I’ve missed something.

Back up Polisy IoX and PG3x; record node servers.

Set up and update eisy lite while Polisy remains operational.

Shut down Polisy and disconnect its power.

Move the Insteon USB Stick to eisy lite.

Restore the regular Polisy IoX backup on eisy lite.

Enable Insteon Support and reboot if required.

Test devices, scenes, programs, and schedules.

Handle PG3x, Portal, and UD Mobile separately if applicable.

Save fresh backups and keep Polisy as a fallback.

The best instructions I have seen for migration is in the wiki:

https://wiki.universal-devices.com/Eisy:User_Guide#Migration

My polisy has a zooz zwave stick. The wiki does not explain how to transfer that to the eisy. It only describes transferring to a zmatter stick, not moving existing zwave hardware.

Will the polisy backup (there is no separate zwave backup when using a zooz stick) restore full zwave configuration to the eisy by simply plugging in the zooz stick.

I had the zmatter stick, so I did not have any first hand experience with a non-UD zwave dongle. I do not recall an option at that time to backup and restore a zooz device. Others may have better recollection.

I recall, also, that there may now be a backup method for aftermarket dongles in one of the newer updates to eisy-ui. Of course, if true, this would necessitate updating your polisy, which sounds like a burdensome task.

Hopefully, others may have better news.