Integra Live was originally developed for GNU/Linux as well as Windows and Mac OS. The Integra Live GUI is based on Adobe Flex, and one of the reasons we chose this framework was cross-platform support provided by the Adobe AIR runtime.
However, when Adobe withdrew support for the Adobe AIR runtime on Linux, we had to cease development on the Linux platform.
If a suitable runtime becomes available on Linux we may resume Linux support. Also, since the Integra Live GUI is separate from the Integra server, it may be interesting for someone to develop an alternative GUI on Linux, making use of the libIntegra API.