Daiderd Jordan

So far I haven't really seen the need for this, other than the occasional breaking change on nixpkgs master there have not really been problems for users as far as...

> Currently I've just worked around this by `lib.mkBefore`/`lib.mkAfter`ing existing activation scripts in my modules, which seems strictly worse. Unfortunately I don't think there's any way to avoid trusting external...

To clarify I'm ok with the changes if they don't remain under the same option as NixOS. For preActivation/postActivation we can use `mkRenamedOptionModule` to provide compatibility. I don't have a...

Yeah, could be that the implementation is a bit too simple to cover this case. But the same idea can be implemented using conditions and the warnings module.

Given that there are multiple permutations for the same file, I'm not sure how well the patch module will handle switching between variants rather than just applying or rolling back...