ZERO 3E - Build OS

Hi,
Iam trying to build Radxa zero 3e OS as per the instructions given in the wiki page…iam able to complete the build successfully.

May i know how can I combine these files to create a single image to flash to SD card?
Or is there any other option to flash these files to SD Card.
Thanks

Is it a system built by buildroot?

Yes it’s…now how can I flash this to SD CARD? …is there an option to create a single image file so that I can use any iso to SD card flasher software like balenaetcher ?

You can refer to the documented steps: