How to use both KDE Connect and GSConnect?

I often need to test software on multiple desktops. I am currently trying to configure NixOS to install Plasma 6 alongside of Gnome. However, when I add services.desktopManager.plasma6.enable = true; to my configuration, I get the following error: error: The option `programs.kdeconnect.package' is defined multiple times while it's expected to be unique. Definition values: - In `/etc/nixos/environments/gnome.nix': <derivation gnome-shell-extension-gsconnect-72> - In `/nix/store/fdxif4mqv9q06ci...