diff --git a/share/common.nix b/share/common.nix
index d2bd213..42e5b62 100644
--- a/share/common.nix
+++ b/share/common.nix
@@ -528,6 +528,9 @@ in
   virtualisation.virtualbox.host.enableHardening = false;
   virtualisation.virtualbox.host.addNetworkInterface = false;
 
+  # allow GrapheneOS install
+  programs.adb.enable = true;
+
   # use doas instead of sudo
   security.sudo.enable = false;
   security.doas.enable = true;
diff --git a/share/users.nix b/share/users.nix
index 89f1886..56fb856 100644
--- a/share/users.nix
+++ b/share/users.nix
@@ -44,8 +44,8 @@ in
       # it's me :P
       description = "Christoph Cullmann";
 
-      # allow VirtualBox and sudo for my main user
-      extraGroups = [ "vboxusers" "wheel" ];
+      # allow GrapheneOS install, KVM, VirtualBox and doas for my main user
+      extraGroups = [ "adbusers" "kvm" "vboxusers" "wheel" ];
 
       # init password
       hashedPassword = config.users.users.root.hashedPassword;