Helpful ( http://helpful.io ). Ruby on Rails helpdesk software trying to make things like ZenDesk & Desk.com suck less. Github: https://github.com/asm-helpful/helpful-web . There is always a list of things to do ( https://assemblymade.com/helpful/wips ) and a community around to help. We also share the ownership (and profit) of the app between the contributors. Anybody is welcome to be "Helpful" and join in building…
This is not open source.
That looks pretty open source to me. It's not the most permissive license, but neither is the GPL...