SARAH, My Mac Siri Software
http://alvinalexander.com/sarah This is a demonstration of some open source software I've written named SARAH. The name comes from the home of the same name in the tv show Eureka.
Sorry the volume is a little uneven. I didn't realize my voice and the computer voice were at such different levels. Also sorry that the top and bottom of the screen were cropped off by my recording software.
SARAH is written in a computer language named Scala, and is completely free and open source.