Improvement - Performix install guide based on DGX Spark local GUI testing. Clarify sudoers configuration by explicitly referencing /etc/sudoers precedence and option to connect via the GUI for local systems with display output.

Author: Your Name

content/install-guides/_images/connect-via-local-host.png

@@ -226,7 +226,8 @@ On the target system, edit the sudoers file:
 sudo visudo
 ```
 
-Add the following line, replacing `<username>` with your actual username:
+
+Add the following line, replacing `<username>` with your actual username. Insert it after any existing entries for that user or their groups, since rules in the sudoers file are applied in order and later entries take precedence.
 
 ```bash
 <username> ALL=(ALL) NOPASSWD:ALL
@@ -287,6 +288,19 @@ Select **Add** to save the jump node.
 
 You can add multiple jump nodes. The order matters—your connection uses them in sequence. Use drag and drop to reorder jump nodes.
 
+#### Connect using the Arm Performix GUI to a local machine
+
+Performix already includes a built-in `localhost` target through the CLI. However, as of Performix 2026.01, this target is not exposed in the GUI. If you prefer the command line, you can run recipes directly without configuring the target through the GUI. [Skip to the profile the local machine section](#profile-the-local-machine) below. 
+
+If you want to target your local machine conveniently through the GUI, use `localhost` in place of `target_host` and select **Username and password** as the authentication method, as shown in the following image. Make sure passwordless `sudo` is enabled for your user account.
+
+
+![Arm Performix GUI showing the Configure Target form for a local connection using 'localhost', including Host set to localhost, Name field for a custom label, Port set to 22, User set to the local username, authentication set to Username and password, and Host Key Verification options#center](/install-guides/_images/connect-via-local-host.png "Configure local target using localhost in Arm Performix GUI")
+
+Enter the password for your user when prompted
+
+![Arm Performix GUI displaying a password prompt dialog requesting the user's system password for authentication, including a password input field, confirmation button, and context indicating connection to a localhost target#center](/install-guides/_images/performix-add-passwrd.png "Enter user password for localhost authentication in Arm Performix")
+
 ### Connect using the Arm Performix CLI
 
 The CLI is useful for Linux hosts or when you prefer command-line workflows.