-Draws a simulation of an old terminal, with large pixels and
-long-sustain phosphor. This program is also a fully-functional VT100
-emulator!
+An old terminal with large pixels and long-sustain phosphor.
+
+On MacOS and Linux, this program is also a fully-functional VT100
+emulator! Run it as an application instead of as a screen saver and
+you can use it as a terminal.