@colincornaby I’m not sure whether it’s fully open source. Main justifications seem to be portability and speed.
Choosing iOS Default Apps: mjtsai.com/blog/2016/11/2… #mjtsaiblog
Mulle-objc: a New Objective-C Compiler and Runtime: mjtsai.com/blog/2016/11/2… #mjtsaiblog
Reddit’s CEO Edited User Comments: mjtsai.com/blog/2016/11/2… #mjtsaiblog
iCloud Calendar Spam: mjtsai.com/blog/2016/11/2… #mjtsaiblog
Updated the Mac Marginalization mjtsai.com/blog/2016/11/2… and MacBook Pro mjtsai.com/blog/2016/10/2… posts. #mjtsaiblog