I see. I checked its documents now and it seems it can be usable on Hyprland only, depending on hyprctl.

I think those are changing according to which sandbox environment you currently use. Probably one for root account (for programs you use with sudo), one for flatpaks and one for normal user.

Can we use it on outside of Hyprland? I installed it but doesn’t show up on nwg-look. No idea if I can use it at all.

They are Xcursor, same as Breeze-hacked. Honestly only native Wayland cursor I know of is Hyprcursor, but that only works with Hyprland it seems.

I tried it and it’s pretty simple and nice. If it gets swipe up gesture for folders and an option to run the first app on tap on the folder, and custom icons, I can finally switch from my old Nova setup.