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.
We are now developing version 2.0 of the software on JUCE, which means that Integra Live will be available on Linux once v.2 is released.