This post is the December 26th entry in the 2014 English F# Blog Advent Calendar. Check out the other great posts from earlier in the month, or head over to the Japanese-language edition! Ho ho ho! It’s the day after Christmas, and hopefully everyone has some snazzy new toys to play with.  But just in case Santa left you a lump of coal (“… little Billy used mutable state this year …”), don’t pout, don’t cry, I’ve got you covered.  My gift for all the naughty F# developers out there: a mini-framework for[...]