BTW, if you're feeling like you want to learn more about F#, this year's F# advent calendar is just getting started: https://sergeytihon.com/2017/10/22/f-advent-calendar-in-engl... . Previous years have been pretty good.
This is also a free resource for learning F# in your browser:
https://notebooks.azure.com/Microsoft/libraries/fsharp/html/...
basically click clone, sign in, run & play around.