When you've found a Project you'd like to build, you can upload it to your Origin via ShaperHub. On the Project Page, Select "Sync to Shaper Origin:"
This will add all the SVG files in a project to your Origin in a folder with the same name as the project.
On your Origin, go to Import > ShaperHub > My Origin Files and select the folder to find all the cut files in the project.
Keep in mind that if there non-SVG files in the project, these will not sync to Origin. But you can always find them in your My Origin Files on your computer or handheld device.