YAWC
Yet Another Wersion of Citadel (YAWC) BBS is a variant of Dave's own version of Citadel (DOC) that was developed to run under Linux. The project was started in 1994 By Kenneth Haglund ( username KHaglund) a student from Vaasa in Finland. The YAWC code base was developed actively by a handful of students around the world, with features regularly integrated into the official source and released to those students who chose to provide BBS services. Most BBS systems running YAWC code were 486 or first-generation Pentium machines capable of supporting 20–30 simultaneous telnet users. In an attempt  to reduce the CPU load on the BBS host and remove the latency issues associated with sending small amounts of text over slow connections, several clients were developed, including the CLient and winCLient, so named to distinguish the YAWC CLient from DOC and other clients.