Imagine a client for Mastodon API:
Single filtered timeline where you can choose how much distraction you want to handle using a slider.
At highest setting, you're looking at the federated feed searing your retina. At lowest, let's say only interactions from people in a list are shown.
In between could be boolean conditions and algorithms, running locally.
If the timeline is cached locally, moving the slider to allow more posts later to browse should work.
