Chorus is a web interface for controlling and interacting with Kodi. It is hosted by your Kodi installation so anything that can run Kodi should have no problems with Chorus.
With a web interface you could potentially be controlling a Kodi player from the other side of the world. But more likely, you will be controlling a local Kodi player in your home or office.
Chorus was created by Jeremy Graham, a Kodi team member who has been obsessed with Kodi since its original inception as Xbox Media Player many years ago. He has invested thousands of hours in the pursuit of the perfect Kodi web interface, all of which has lead to what you are using right now.
To say thanks to Jeremy for making Kodi great to use via a browser or maybe just some encouragement to make it even better? You can buy him a beer or 2.
It happens, it could also be a "Cool idea"? Chorus is a complex app and Kodi is way more complex. For Chorus issues you can create an issue on Github. It is important that you provide as much information as possible. Great things to include are:
Got neat addition or a feature wish list for Chorus? You can add them to the Github page or even better, send through a pull request..
View the readme for an overview, the changelog lists notable changes between versions or maybe you can help with translations.