It is the composer information for your project, there's nothing to install as php is the only requirement and your framework is the thing that needs to be installed. You need to create a new project if you want to "install" your framework.
To create a new project, based on your framework, you can do the following:
- Create an empty directory
- Create, inside that directory, a file named "composer.json"
Inside that file, put the following
{ "require": { "dariushha/zinux": "dev-master" } }
Now enter
composer install
and avendor/zinux
directory with your framework will be created.