Simon Marlow Software Engineer at Facebook in London Co-developer of the Glasgow Haskell Compiler Twitter: @simonmar Github: simonmar Email: marlowsd@gmail.com LinkedIn: Simon Marlow Hotswapping Haskell October 17, 2017 This is a guest post by Jon Coens. Jon worked on the Haxl project since the beginning in 2013, and nowadays he works on broadening Haskell use within Facebook. From developing code