Invoke the setup wizard as described in the user’s guide. Accept the terms and press the Next button to display the Installation Features page

Select the IntelliJ IDEA entry and make sure the installation target is set to “Create Plugin Repository”. If there should be a different target selected, click on the target to display a pop-up menu that lets you switch the install target

Press the Choose... button to invoke the directory chooser and select the target location where the installer should generate the plugin repository files

Proceed with the installation as described in the user’s guide. Eventually, the installer will create the necessary files in the specified target directory that you can either use as a local plugin repository or upload to a shared server to make the plugin accessible for all team members.

From within IntelliJ IDEA, you need to add a reference to the created plugin descriptor (updatePlugins.xml) in order to have IDEA check the repository according to the defined schedule. This process is described in detail in the How do I install Jalopy from a custom IntelliJ IDEA plugin repository How-To