Migration guide to 0.30?

[AndreasBackx]

It's great to see the 0.30 making some great and deserved changes. I'm using it for a new project and want to migrate an older project: https://github.com/AndreasBackx/waycorner. A few years ago I used the Smithay book, but it seems that it's out-of-date, though there is an "unpublished" 0.30 branch, it is 1 year old when 0.30 seems newer than that so I'm unsure it's up-to-date.

Regardless, where does one start to read up on how to migrate from the older spec? I enjoyed the book a few years ago, though I haven't entirely kept up-to-date with what's happening so I could also use with a refresher. 😅

Thanks again for the great tools!