That one is weird. I used Visual Studio Code to build a site with Gatsby.js. At some point I restarted my mac (Catalina) and with that, the VS Code as well.
But now, even after many reboots and without VS Code running at all, I have Gatsby's development server constantly running at http://localhost:9000. Can't find anything in Task Manager that resembles Node or Gatsby or Webpack.
How to quit that rogue web server?