https://til.simonwillison.net/
Like a microblog of little learnings in day-to-day development.
One interesting thing that occurred to me recently is that my personal site (https://amontalenti.com) is more an essay archive and identity verification tool, than it is a “blog” or “microblog.” That is, the timestamps of the content on there are the least interesting thing about it. The most valuable page, for me, is https://amontalenti.com/archive.
As for something like /now, the most fascinating implementation of this is an old friend of mine from college. He and I were both early 2000s bloggers, but he came up with the idea, in 2001 or so, to keep a nearly-daily one sentence personal diary on his blog. He kept that up for the last 20+ years (he is nowadays a CS researcher and inventor in HCI). Very impressive near-daily microblogging habit over a lifetime!