StartBBS
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http://www.startbbs.com/
https://github.com/startbbs/startbbs
XiunoBBS
--
http://bbs.xiuno.com/
https://github.com/xiuno
SimpleForum
--
http://simpleforum.org/
https://github.com/yujiandong/simpleforum
列表
--
https://www.zhihu.com/question/23672834