In the light of this post, I'd like to share that I made an almost "no js" live monitoring service a few days ago. Again with the help of Elixir (and Phoenix LiveView). It tracks everything that's posted on Hacker News and Reddit in "real-time", and distributes it to everyone listening to it. And it tracks the number of online users, too. Of course.
You can check it out here https://alertcamp.com/live/Apple,Google,Microsoft,Amazon,Fac...