lots of small changes after using nixos for ~1 month

hosts/voidspear/configuration.nix

@@ -27,6 +27,16 @@
   # Enable networking
   networking.networkmanager.enable = true;
 
+  # ZeroTier
+  services.zerotierone.enable = true;
+  services.zerotierone.joinNetworks = [ "b3ce837c63" "363c67c55a726a89" ];
+
+  programs.nix-ld.enable = true;
+  programs.nix-ld.libraries = with pkgs; [
+    libGL
+    SDL2
+  ];
+
   # Set your time zone.
   time.timeZone = "Europe/Athens";
 
@@ -80,6 +90,16 @@
     #media-session.enable = true;
   };
 
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+    settings = {
+      General.Experimental = true;
+      General.FastConnectable = true;
+      Policy.AutoEnable = true;
+    };
+  };
+
   # Enable touchpad support (enabled default in most desktopManager).
   # services.xserver.libinput.enable = true;
 
@@ -88,7 +108,7 @@
   users.users.xory = {
     isNormalUser = true;
     description = "xory";
-    extraGroups = [ "networkmanager" "wheel" ];
+    extraGroups = [ "networkmanager" "wheel" "docker" "libvirt" "dialout" ];
     packages = with pkgs; [
     #  thunderbird
     ];
@@ -116,13 +136,15 @@
 
   # nVidia drivers.
   hardware.graphics.enable = true;
-  services.xserver.videoDrivers = [ "nvidia "];
+  services.xserver.videoDrivers = [ "nvidia"];
   hardware.nvidia = {
     modesetting.enable = true;
     powerManagement.enable = false;
     open = false;
     nvidiaSettings = true;
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
   };
+  boot.blacklistedKernelModules = [ "nouveau" ];
 
   nix.gc = {
     automatic = true;
@@ -130,6 +152,11 @@
     options = "--delete-older-than 2d";
   };
 
+  programs.virt-manager.enable = true;
+  virtualisation.libvirtd.enable = true;
+  virtualisation.spiceUSBRedirection.enable = true;
+  virtualisation.docker.enable = true;
+
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;