Launch Eclipse to perform the installation of the repository. If you don't have a repository yet, you can build it by following the build instructions.
Select the Help->Install New Software... menu to bring up the installation wizard.
Push the Add... button to bring up the Add Repository dialog.
Push the Archive...button and navigate to the zip file containing the repository.
Push the Open button. The Location text field now contains the location of your archive.
Push the Add button to close the dialog.
The Install wizard now contains the Quarkus repository and feature. Push the Select All button and then Next to pass to the installation details page of the wizard.
Push the Next button once again to pass to the license page of the wizard.
Accept the license to enable the Finish button that you need to push subsequently. A dialog opens warning you that you are installing unsigned content.
Ignore the warning and push the Install anyway button. Eventually a new dialog window will open asking you to apply the changes by restarting Eclipse.
Finish the installation by selecting Restart Now.
You can now create your first Quarkus project by following the getting started guide.