Hehe, I'm actually playing with a similar idea. I'm still trying to figure out how to reduce friction for less tech-savvy users, so have both the ability to plug in your own feed or use the UI on the site.

I wrote about now pages here https://untested.sonnet.io/My+Now+Page

I also made a version of "my life in weeks" https://days.sonnet.io as an excuse for reflection, an excuse to get the bird's eye view of my life, then to encourage others to do something similar. And, some people, even here on HN, have!