A bit more details. I upgraded last week to enable the GPU driver (its just a nix config flag). The GPU driver works quite well given that its brand new and still quite experimental. I've had a few issues in early boot but once the system is up I've not seen any crashes yet.

I've been patching m1n1 to gain back the extra 64 pixels at the top of the screen in the notch area. I just saw a patch go by a few days ago to add a kernel flag to enable this so I need to switch over to that.

Overall the work in this project to track the asahi changes in the nixos way is being done very well. My system feels just like my other nixos systems.