Periodically I get inspired to create an Anki deck (or several) for some stuff at work and share it around; I bounce off it because I'm not sure about updates.

Periodically I get inspired to create an Anki deck (or several) for some stuff at work and share it around; I bounce off it because I'm not sure about updates. In particular, I don't think there's a way to mark cards as deserving deletion on re-import of a deck? Does anyone know of a way to do that with Anki, or of similar software (this?) with such a feature?