If you have read the whole information about Outertune on the homepage, then you must know that Davide Garberi has done exceptional work in developing Outertune, and Anuj Seharwat is now doing very good work in fixing this app, and you should consider supporting him by donating any amount of your choice via PayPal.
And do not forget to rate the Outertune Repo on GitHub before supporting the project-