The interpreter is available for download in the Releases tab. However, if you want to compile it yourself, feel free to do so. Once you have the interpreter, to run the example.kn file, simply type the command ./kinnie example.kn or, if you are using Windows, ./kinnie.exe example.kn.
kinnie has an extension for Visual Studio Code that allows keyword highlighting and suggestions. You can download it from the kinnie-vsc repository, also from the Releases tab. https://github.com/autoselff/kinnie-vsc