I designed it to be simple and really fast. It only does one thing: search for apps. To try make things quick and load instantly, it uses the same native renderer as Zed, some operations are multi-threaded, apps are indexed, etc.
Despite the core of the app being minimalist, I did put effort into making sure Fetch looks and feels right to use. It's simple, doesn't get in the way, and ideally should work just as you'd expect.
It is currently not as easy to install as I'd like (I want people other than developers being able to use it), and has a few things left to implement (mainly non-macOS support), but I'm sharing this in hopes that it can help someone else as well, and am open to feedback or questions!