There is a world of difference between shipping a feature, and shipping an api that anyone can use to ship a feature. It is such a normal progression to make an api and dogfood it internally, iterate until you have something you feel comfortable supporting indefinitely, and then expose that api publicly. It is not reasonable, IMO, to require that every feature you ship has an API that is ready for public consumption.
Granted, Apple generally doesn't do that last part unless forced. I think some kind of timeline on the DMA requirements would be more reasonable. e.g. you have two years to make a feature publicly accessible before fines start accruing.
Granted, Apple generally doesn't do that last part unless forced. I think some kind of timeline on the DMA requirements would be more reasonable. e.g. you have two years to make a feature publicly accessible before fines start accruing.