So you have Technic Solder all setup and you want to do more than make one big fat zip to send to your friends. Because if that was all you were gonna do then you didn't need Technic Solder at all. So here is how to use the strength of Technic Solder which provides the power of distributing modpack updating.
I am the original author of this video. It was posted on Youtube under my identity "Kreezxil".