Hello HN!
Flowtide is a project I have been working on for about 2 months now. It is a customizable new tab page for Firefox or Chrome. By default, it is configured to have a minimal amount of features, but it can be configured to include a clock, to-do list, or even soundscapes.
Install: https://flowtide.app/
GitHub: https://github.com/thingbomb/flowtide
The first question that pops into my head (being aware that this is a popular category of apps) is: when do people look at blank tabs? Whenever I open a new tab, it's with the intention of entering an address or a search term, and any content would be an unwelcome distraction.
I'd be more likely to use something like this if it lived under a regular domain name and I could put it into a pinned tab, personally.