I have long participated in the FOSS community. My first public contribution was the YardRadius project in 1995, a consolidation of the old Livingston Radius daemon and a series of add-ons written by Christian Gafton (RIP) and me. That was some years before the more significant FreeRadius project. At that time, I ran for a period an ISP just before the dotcom bubble exploded, but that's another story...