Automating merged.hex Patching After Build

Hello Nordic team,

I would like to automatically patch the merged.hex file each time I build my project. I’ve attempted to use extra_post_build in CMakeLists.txt, but my patching script still runs before the merged.hex file is generated.

From what I’ve read here https://devzone.nordicsemi.com/f/nordic-q-a/102010/adding-extra_post_build-step-from-out-of-tree-application, this behavior might be due to the CONFIG_BOOTLOADER_MCUBOOT macro.
Is there an alternative solution or recommended approach to ensure that my patching logic runs after merged.hex is fully created? i am using nrf 5340 and sdk 2.9.0

Thank you in advance!

Best regards,
kelk

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