I wish you all good health.
Using the "Armbian" build system, I noticed two bad points:
1 - incomplete cleaning of the source code before starting a new compilation, seen when patches add new files to the tree.
2 - Debian kernel source package includes the git directory.
1) All I do I'm fixing the version kernel (KERNELBRANCH="tag:v4.14.40") and collect several variants for one Board, changing the patchset for each version, adding or removing some.
Before each new