Doughnut is a podcast client built using Swift. The design and user experience are inspired by Instacast for Mac which was discontinued in 2015. After experimenting with alternate user interface layouts, I kept coming back to the three column layout as most useable and practical. Beyond the standard expected podcast app features, my goals for the project are: • Support an iTunes style library that can be hosted on an internal or network shared drive • Ability to favourite episodes • Ability to create podcasts without a feed, for miscellaneous releases of discontinued podcasts Previously Doughnut was built on top of Electron which worked ok, but using 200+ MB for a podcast app, even when it's minimized felt very poor. This version is archived in the electron branch. Doughnut is now written as a 100% native MacOS app in Swift.