Extract the .zip file downloaded from the System Optimiser website.
Move the coda-system-optimiser.app file to your Applications directory.
Run the application. (You may need to ‘right-click/open’ the application to allow the unsigned application).
Extract the .zip file downloaded from the System Optimiser website to a location of your choice.
Run the application. (You may be prompted that the developer of the application could not be verified).
Upon running System Optimiser for the first time, the Data Version Manager will open and prompt you to log in, and can be used to download the latest dataset.