Is this project a script over archiso or not? Also, if it is not, why not just have an obarun archiso config. This way the project does not need to maintain its own iso builder.

Thanks!!
It's a modified copy of the archiso builder which provide many features than the original one. Also, it cannot be a simple copy with some template cause (and other stuff) of the init system.
But if you're a developer, feel free to propose scripts idea especially to be able to make ISO by a runner inside our Gitlab instance.

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