wlroots because I have little experience with GPU things, and they have already done a lot of the heavy lifting that I would do. I specifically want it to be a

wlroots because I have little experience with GPU things, and they have already done a lot of the heavy lifting that I would do. I specifically want it to be a window manager, so it can script graphical applications in the same way that GNU Emacs can script text applications. Regarding Guile - I am familiar with it since I use GNU Guix. I think it is one of the more practical Scheme implementations with its current ecosystem.