Also I am wondering if you could estimate how difficult it would be to implement something like Niri? I much prefer the scrolling style tiling, but none of the MacOS WMs seem to be going that route (other than PaperWM.spoon which is not for me).
to answer both comments: i've been working on a way to handle tabs but it's hard to find a solution that isn't half-baked due to the lack of info on tabs given by the os (there are no events or anything, just on a11y attribute that give info on tabs)
as for a scrolling layout, its possible, but does not fit that well with rifts layout, even thought you can get something similar using trackpad swipes to switch between workspaces
I'm pretty new to Mac and didn't know Paper had a port, what isn't to your liking?
https://github.com/karinushka/paneru does that