Reworked KDE Theme reminder to be a popup. Fixed Trayscale not working by default.

configuration.nix

@@ -10,7 +10,7 @@
 
 #Nix flake file limit: ulimit -n 500000
 
-{ config, pkgs, ... }:
+{ config, pkgs, username, ... }:
 {
 
   #Assign Swap to the PC
@@ -100,8 +100,9 @@
 
     tailscale = {
       enable = true;
-      extraUpFlags = [
-          "--operator=${builtins.getEnv "USER"}"
+      useRoutingFeatures = "client";
+      extraSetFlags = [
+          "--operator=${username}"
           "--accept-routes"
       ];
     };
@@ -139,6 +140,8 @@
   #In order for dynamically linked executables to work
   programs.nix-ld.enable = true;
 
+  programs.steam.enable = true;
+
   # Configure console keymap
   console.keyMap = "de";