I have looked at different things at different times. You've made some interesting stuff.
I've been busy with fencing myself, www.crossroadsfencing.com
, hoping to sign a lease today/tomorrow on a place of our own, then will have a place to permanently install this fencing stuff I've been working on since August, adding stuff as I go. Yesterday finished up wiring another card that will be allow me to detect touches on my own vs reading the output of another box & re-displaying its lights.
Wiring in some more connectors now to connect it all up.