This is still pretty rough I haven't had that much time to work on it. An example of how to use the compiler API is in the ScriptCompileTester project. The decompiler is still mostly unusable.
To build you need to recursively clone submodules and also place a copy of win_flex_bison such that $(SolutionDir)win_flex_bison\win_bison.exe and $(SolutionDir)win_flex_bison\win_flex.exe are valid paths.