You can download and build RxKotlin from GitHub (https://github.com/ReactiveX/RxKotlin). It does not require any other dependencies. The documentation on the GitHub Wikipedia page is well-structured. Here is how you can check out the project from GitHub and run the build as follows:

    $ git clone https://github.com/ReactiveX/RxKotlin.git
    $ cd RxKotlin/
    $ ./gradlew build
  

You can also use Maven and Gradle, as instructed on the page.

Now, let's take a look at what RxKotlin is all about. We will begin with something well-known, and gradually we will get into the secrets of the library.