Back in 2005, when I switched from Windows to OS X, this was my editor of choice. During this time TextMate was without equal and was considered the best code editor that money could buy. Fast forward a decade or more and it's still a fantastic text editor for developers. However, it's also starting to show its age and rapidly falling behind competitors like BBEdit, Atom, and Microsoft's Visual Studio Code in terms of features. Sounds bad, right? Fear not, TexMaters, all is not lost. The editor has gone open source, new features are slowly being added, and, even considering all its current misgivings, there's still something unique and special about it that makes it super fun to use compared to the others. Would I pay $50 for it? No, not at this point in time. However, I have high hopes that one day Textmate will return to its former glory.
Edit: I forgot to mention that you can download the source for TextMate from https://github.com/textmate/textmate