High Quality Content by WIKIPEDIA articles! OpenTelegard/2 (OpenTG) is an open-source implementation of a bulletin board system (BBS) software program written for Linux and/or Unix. Written from scratch in Ruby, the goal is to reproduce the look, feel, and functionality of similar legacy BBS systems such as Telegard or Renegade, which were written for DOS and OS/2 during the pre-internet communication era. No original code is being used or referenced.