Does anyone know of a way of using the same docker-compose file for my prisma & backend // frontend?

yes, you can create Dockerfiles for your frontend and backend. Then you can use docker-compose to start and manage those image. Example for node backend and react frontend: https://medium.com/@xiaolishen/develop-in-docker-a-node-backend-and-a-react-front-end-talking-to-each-other-5c522156f634