Assuming they don't get too school girl giggly (which they've done in the past when copious amounts of whiskey were involved), this should be a good conversation. Haack left Microsoft several years ago to join GitHub. Initially he just worked on a Windows client for GitHub but today is a Director in the client apps division which oversees projects like Electron and the Atom editor. His insights on having been part of the open source movement at MSFT and being involved with some beloved tools at GitHub makes his insight and observations most interesting!