Janus is an open source, general purpose, WebRTC server designed and developed by Meetecho. This version of the server is tailored for Linux systems, although it can be compiled for, and installed on, MacOS machines as well. Windows is not supported, but if that's a requirement, Janus is known to work in the "Windows Subsystem for Linux" on Windows 10. To discuss Janus with us and other users, there's a Google Group called meetecho-janus that you can use. If you encounter bugs, though, please submit an issue on github instead.