Accessing PetBook project locally

I’ve worked through and completed the PetBook project, but now I can’t seem to get it to run locally when I download the zip off of Gist. Any advice?

https://www.codecademy.com/paths/front-end-engineer-career-path/tracks/fecp-react-part-ii/modules/fecp-lifecycle-methods/projects/react-lifecycle-methods-social-network-for-pets