Why have one specific package for opening the current project in the terminal, another one for the Finder and a third for the GitHub application when you know which applications you use?
Open In is a package for opening the current project or file in the application of your choice.
apm install open-in or search for it in the package manager.
Press ctrl-alt-o and pick project or file, then the application of choice.
A comma separated list without spaces of applications you want to be able to trigger.
Default: GitHub,Terminal