I once built an app with React that worked reasonably well on my iPad, my Android phone, and my Mac. I tried to port it to native Swift. It was demoralising af

I once built an app with React that worked reasonably well on my iPad, my Android phone, and my Mac. I tried to port it to native Swift. It was demoralising after going through all the trouble of rewriting it in Swift, the app that works on the iPad, doesn't work on the Mac.