I'm currently working on NewsNinja[0] in my spare time, a RSS reader app that groups articles talking about the same story and optimizes reading time.
I started it a couple of months ago, I was tired of reading the same story posted across different news outlets.
Over time I added new features like summarization, the ability to hide articles that have specific words in titles, etc.
Currently working on adding custom themes and fonts for the reader mode and various customization options.
It's a fun little side project, still much to do to improve it, I'll be busy for a while!