Now using currentSystemUser for username across machines

machines/katana/default.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ currentSystemUser, ... }:
 {
 	imports = [
 		./hardware.nix
@@ -11,5 +11,14 @@
 
 	networking.hostName = "katana"; # Define your hostname.
 
+	# I still don't know why my configuration fails if i omit this
+	system.userActivationScripts = {
+		removeConflictingFiles = {
+			text = ''
+				rm -f /home/${currentSystemUser}/.gtkrc-2.0.backup
+			'';
+		};
+	};
+
 	system.stateVersion = "24.05"; # Did you read the comment?
 }

machines/katana/virtualisation.nix

@@ -1,10 +1,10 @@
-{ ... }:
+{ currentSystemUser, ... }:
 {
 	virtualisation.podman.enable = true;
 	virtualisation.podman.dockerCompat = true;
 
 	programs.virt-manager.enable = true;
-	users.groups.libvirtd.members = ["r3ddy"];
+	users.groups.libvirtd.members = ["${currentSystemUser}"];
 	virtualisation.libvirtd.enable = true;
 	virtualisation.spiceUSBRedirection.enable = true;
 }