Can't seem to set nordic papirus-icons using papirus-folders

I am trying to set Papirus-Dark folders to nordic. I installed papirus-folders but `sudo papirus-folders -C nordic --theme Papirus-Dark` fails as current-system/sw/share is read only. there no option for it either. what should I do? I’m new to NixOS. My setup is NNN stack NixOS Niri Noctalia and I’m on stable 26.05 channel. I can’t seem to find the solution anywhere.