开源博客、社区系统大集合，各种主流语言的都有

https://github.com/mlogclub/bbs-go     golang

https://github.com/88250/symphony     java

https://gitee.com/veal98/Echo                java

https://github.com/thinksaas/ThinkSAAS         PHP

https://github.com/flarum/flarum         PHP 13.5k

https://github.com/yourkevin/NiterForum     java

https://github.com/codedrinker/community     java

https://github.com/zdhxiong/mdclub             php

https://github.com/atjiu/pybbs                        java