Runing a qemu Nix guest in a Fedora Host

I am new to NixOS, and I would like to learn it in and make my first config in a VM. I am running qemu for this. I do have AMD-V activated, and I am booting from UEFI instead of BIOS. Other than that I am not doing anything fancy. I am using the latest KDE Image.

The Initial installer shows up, but adter that is just a black screen.

Try the GNOME or minimal iso, the plasma one is broken for years.

Thanks, I used the gnome ISO and chose KDE in the installer. Now I have other problems but I will make another post about that.