There were 2 Unix BBS programs that I played with back in the 80s. One of them I think was
called XBBS. The other one which was a lot better was called Waffle (89 timeframe). Waffle
was a lot more configurable and snazzier and ran well on SysV (and others). XBBS was
targeted for Xenix, was older & may run better on older hardware but would require
some porting.
Kirk
  On May 17, 2017, at 8:58 PM, Zane Healy via cctalk
<cctalk at classiccmp.org> wrote:
  On May 17, 2017, at 5:45 PM, devin davison via
cctalk <cctalk at classiccmp.org> wrote:
 I have both a pdp 11/34 and 11/23 and am trying to find some bbs software
 to run. Preferably something that will run under an os and not monopolize
 the whole machine.
 Any suggestions? i have not had much luck finding anything.
 --Devin 
 There may be something for RSTS/E.  That seems like the OS most likely to have such
software.  You might also find some old UNIX source code that might compile on BSD2.11.
 Zane