Making a liniux version for Flex is a slippery slop. This is covered in another thread in the last couple weeks in case you missed it.
SSDR is running very well on Win7 here, I can not imagine it getting any better. But I only use this computer for Flex SSDR, nothing more. I am writing this on my linux Mint machine witch is my main computer I do everything on.
Like with iOS and Mac, I believe that Flex will NOT be writing a Linux Client but rather they will leave it to a Third Party Developer
The API is there ..
The issue then becomes the economic incentive for a developer to write a Linux Client..
I am also guessing like with Android, there in not sufficient economic incentive for any 3rd party to write the Linux or Android clients.
So this request is moot until some Independent 3rd Party Developer steps up to the plate
Given that view, I've developed a Mac version of FlexLib. It's written in Swift which is now open-sourced and has a Linux implementation. I don't have the time for or interest in LInux but if someone does they are more than welcome to try to make my library run in Linux. I don't think it would be difficult.
My library (xLib6000) is freely available at https://github.com/DougPA/xLib6000 . While you are there take a look at xAPITester, a very useful tool for understanding the Flex 6000 API, like xLib6000 it is a native Mac application.