To work with extremum CLI you will need Node.js and npm.
Install them using official instruction.
When creating projects from a template extremum CLI gets the current version of the template using the source code management system git. Verify that git is installed on your computer by running the following command on the terminal:
$ git
If necessary, install the git according to instruction
You will need the curl console HTTP client to complete some of the tutorials. Verify that curl is installed on your computer by running the following command on the terminal:
$ curl
If necessary, install curl according to instruction