Been-there, been-done-by BSD UN*X, C, Perl, Tcl/Tk, Windows, VC++, ATL-COM, VB, C#, MSI/InstallShield, HL7, Healthcare Integration, etc.

Giving iOS, OS X, Objective-C, Swift, JavaScript, CoffeeScript, Ruby, Rails, RSpec, Capybara, etc. their turn.