Not even using the jointer blade too. Just a standard table saw and the sled is nice and small (so portable). The author uses an arduino to count steps on the crank. Too bad it didn’t use a stepper to automate that bit. Unfortunately the author does not seem to have a link to plans or code for this.
http://www.homemadetools.net/forum/new-kind-digital-finger-joint-jig-63733?homelistings#post99998