Do you know what this #NVDA addons development fever reminds me?
#NodeJS world. Developers will understand.
As we all know, Node has packages for everything: check that a number is positive. Check that a number is odd (separate packages!).
I don't know whether it's good or bad for NVDA (well, I do have a strong opinion about Node though).

@menelion At least NVDA doesn't have add-on dependencies... Yet.