I've looked into Anki generating packages before. The problem I run into is that you have to specify the ID for the deck that might be different for different people. Especially if they want to import into existing deck. Then you'll have to figure out how to pull the deck information out of the database first and then import cards into it.

The current Ankify already adds ID for the cards so it'll update the contents on each conversion. The only problem is if you delete a card, you'll have to manually do that in Anki.