You can run this app from an emulator such as vMac, which is awesome since Apple has released System 6 and 7 as freeware on their website.

Historic note -- prior to System 7.1, all Mac OS versions were freely redistributed and provided for a nominal fee from Apple.

We would get our copy from the local university bookstore for the cost of the media.

Great!

Now I can tweet from my Color Classic!

;-)

Is the source public? I would love to play with it.