I was inspired by Andy Matuschak's note on "Work with the garage door up".

I put a widget on the page header that pops up a hint about when I last worked on the site. If someone visiting the website happens to be on the same page that I'm working on locally it pops up a message.

Which quotes from Robin Sloan's newsletter:

Part of the problem of social media is that there is no equivalent to the scientific glassblowers’ sign, or the woodworker’s open door, or Dafna and Jesse’s sandwich boards. On the internet, if you stop speaking: you disappear. And, by corollary: on the internet, you only notice the people who are speaking nonstop.

This little glowing dot with a status message is my attempt at that.