Pawn Endgame Solution

You might remember my earlier post about a pawn endgame I had in a recent tournament against a friend of mine. Well, I forgot about it for a few days and I still had to clean up my analysis, but finally it's up. I think it's a fairly principled position, but execution in these endgames can be tough. I missed my chance to win, hopefully you didn't miss it. Check out the solution here.