Once you have copied the manifest link from the latest Patreon post, you need to open Foundry and navigate to the
Add-On/Modules tab and click the "Install Module" button.
This should open another window. Wait until the available packages are fully loaded and then paste the manifest link
at the bottom of the page, next to where it says : "Manifest URL" and click on the "Install" button.
It will take a while to install. You'll see a progress bar at the bottom of the Foundry VTT application. When that's done, you will see our module there.
All you need to do now is activate it in a new world like so :