An open source Wine-based project called Wineskin allows anyone to attempt to port games to Mac OS X since 2010. It uses all open source components and is open source itself. Its technology is very similar to what TransGaming does with Cider, but it is free to use to anyone. Wineskin creates self-contained ("clickable") Mac Applications out of the installation. The "wrappers" that can be made from this are often shared with friends or others. Legal versions of games can then be installed easily into the shared wrapper and then the final result works like a normal Mac app. Wineskin is mainly only used in "Hobbyist Porting" and not professional porting, but some professional game companies have used it in major releases. Since the end of 2014, there is a PaulTheTall.com app called Porting Kit which automatically creates ready-to-use Wineskin wrappers for some specific games.