First time I saw Fable in action I was convinced: this is the tool for us, backend developers. At last we can write nice UI directly in F#. And we did. We went us far as writing a dashboard to monitor our system activities using Web sockets. The source code is written entirely in F# and compiled into JavaScript using Fable magic. In this talk we will build a similar dashboard, using pre-recorded stream of real time events. So if you are still in doubt that F# is a versatile language suitable for frontend development, come to my talk and I will try to change your mind.