What is the significance of a source folder/directory with a .tproj suffix?

What is the significance of a source f开发者_如何学Goolder/directory with a .tproj suffix ?

.tproj is a Trinity Project file. Trinity is now called Graph Engine however.

You can open them in Visual Studio after installing the Graph Engine VSExtension

Project Builder, which was the IDE for NeXTStep, OPENSTEP, and Mac OS X that later became Xcode, used to have the concept of a "tool project", for which it would make a .tproj folder. So I believe in the concept of Mac shell utilities, you're looking at something that's similar in concept to a .xcodeproj.