In 2015 I helped build the embeds feature that got into WordPress 4.4. Only a few months later I helped get Shiny Updates V2 into WordPress 4.6. I will explain what feature projects are before sharing the story behind these two projects. How did we manage them? How do they differ? Where got things messed up?
For example, Shiny Updates has only been partially merged into core. Why did this happen and what can we learn from it? Also, I want to give a glimpse at Shiny Updates V3 (and perhaps another new feature project as well!) and encourage people to contribute to core — either in general or through feature projects.