 One of the most obvious examples of this is one of the most-used BBS systems and networks, WWIV, developed initially in BASIC by Wayne Bell.A culture of "modding" his software, and distributing the mods, grew up so extensively that when the software was ported to first Pascal, then C++, its source code continued to be distributed to registered users, who would share mods and compile their own versions of the software.This may have contributed to it being a dominant system and network, despite being outside the Fidonet umbrella that was shared by so many other BBS makers.