What are open source decentralized sites for “I am a customer, I need a contractor”?

Question

open source

What are some open source, **decentralized** site solutions like bulletin boards or something like "customer looking for contractor"? That is, so that you can download such a site from github, customize it for yourself and run it.

Answer 1

Craigscoin [0] was, but did not take off.
[0] https://github.com/CraigsCoin/CraigsCoin

Answer 2

https://www.google.com/search?q=%E4%E2%E8%E6%EE%EA...
Recommend a message board engine