A deployment is the result of a successful build of your project. A deployment is triggered when you import an existing project or template, or when you push a Git commit through your connected integration or use vercel deploy from the CLI. Every deployment generates a URL automatically.
For deploying an app to vercel we need to create a git hub repo and connect this with Vercel account.
once the repo s connected the repo can be connected to the server for free deploy
once the repo is connected and the env file is configured according to the vercel docs it will start deploying on the server.