This is more of my kind of build. Its simple, can be done in under 20 minutes, and can be made from scraps. I don’t think I would use a hardwood runner thought. Another couple of changes I would do is to make the end of the bolt bigger with something, and add in a way to lock the jig into place on the saw.
https://www.instructables.com/The-Easiest-Thin-Strip-Jig-for-the-Table-Saw/