The best engineers and craftsmen - even juniors - understand which work is core to the craft and the end result, and which is peripheral.
Unless you're hyper-specialised within a large organisation, you can't bring the same degree of obsession to every part in the process, there will always be edges.
Even an artisan who hand-builds everything that matters may take some shortcuts in where they get their tools from, or the products they use to maintain them.
In a big org, you might have a specialist for every domain, but on small teams you don't.
And ultimately I've got other things to do with my life besides learning to write Cmake from scratch.
Unless you're hyper-specialised within a large organisation, you can't bring the same degree of obsession to every part in the process, there will always be edges.
Even an artisan who hand-builds everything that matters may take some shortcuts in where they get their tools from, or the products they use to maintain them.
In a big org, you might have a specialist for every domain, but on small teams you don't.
And ultimately I've got other things to do with my life besides learning to write Cmake from scratch.