Can't recommend this approach highly enough: have someone with minimal expertise go through your docs with the goal of achieving the goal of the docs. Sit next to them or screenshare. Do not speak to them, certainly do not help, just watch. Watch them fumble. Watch them not know what to do. Watch them experience things you (the author) didn't, because you already had xyz configured on your machine and you forgot user…
Most cases it is not that docs author forgot users wont have same toolchains. Simply do not bother reducing config files to share just source code. Indirectly pushing users to make use of same tools.
Hopefully in 20 years no one will be going to check the source code of anything, and programming is elevated even more.
50 years is crazy amount of time, to stay this primitive. Tech shouldn't just evolve for end users.