Contributing to Anki iOS

Does anybody know how one would contribute to the Anki iOS app? I’m a mobile developer and would love to propose / build out an idea for a small feature in the all and have plenty of open source contribution experience. Is there a team I could reach out to or open source repo I’m not seeing? Not looking for compensation or anything, I’ve been a daily user for a couple years now and think this would be a very beneficial feature.

Basically I’d like to build out a home screen widget that you can do reviews on.