https://devzone.nordicsemi.com/f/nordic-q-a/127360/proper-way-to-add-cpunet-overlayHi Nordic team, In the context of adapting the software for our custom PCB I need to make some changes in some devicetree nodes for the net core. Therefore I wanted to add a specific overlay targeted to the net core. As I&#39;ve seen many examples addingen-USTelligent Community 13Wed, 11 Mar 2026 13:10:21 GMThttps://devzone.nordicsemi.com/thread/563028?ContentTypeID=1Wed, 11 Mar 2026 13:10:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:40cc4eaa-3152-4e2e-8320-9c4d710b3c3eFaouzi<p>Hello Vidar,</p> <p>Thanks for your quick response and support. It added the overlay as you mentioned and explained in the course and worked as expected.</p> <p>Best regards,</p> <p>Faouzi.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/562989?ContentTypeID=1Wed, 11 Mar 2026 07:01:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e4e84a3-511c-4f32-8e19-e1b178b71e55Vidar Berg<p>Hello&nbsp;<span>Faouzi,</span></p> <p><span>Overlays are applied per FW image&nbsp;as explained in this course here:&nbsp;<a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-sysbuild/topic/sysbuild-configuration/">https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-sysbuild/topic/sysbuild-configuration/</a>. If you for example are running &quot;ipc_radio&quot; on the network core, you can create a file named ipc_radio.overlay in your sysbuild folder which will automatically be applied to that build. If you are using the VS code extension, you can also use the UI to check if an overlay is being included in the build.</span></p> <p><span><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1773212428333v1.png" alt=" " /></span></p> <p><span>Best regards,</span></p> <p><span>Vidar</span></p><div style="clear:both;"></div>