Lawnchair is a free, open source launcher aiming at bringing Pixel Launcher features to other devices.
Nothing, I am promising that Lawnchair, including all it's features, will always be free! But if you really like it, you can still pay me a beer or something on PayPal.
Contributing to Lawnchair is pretty straight forward! Fork the project, clone your fork and start coding!
Before implementing any new big features I would be happy if you would either hit me up in an issue, or on Telegram. I probably won't reject it, but this is just to make sure that you don't invest your time for something I won't include.