Hi,
how to enforce that a rule is executed last before the rootfs is built?

Motivation:
I have a script that goes through all the application sources runs "git describe --tags" and maps that to the app name.
In the end it generates a file mapping the apps with versions, and I'd like to have that app on the image.
It has to run last to ensure that all the apps have been fetched to the latest version.

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