Retasking Paperwhite

I have a 10th Gen Kindle Paperwhite reader, and I'd like to re task it to do things like show my calendar, or maybe display the weather or home automation status.

Has anyone reprogrammed (re flashed) the device so it is not a Amazon Kindle anymore but a general purpose display?

I've seen something called Jailbreak, but I think that is not the same thing.

Thanks, Mark.