Here are some important notes for developers regarding the vercel.json
See: https://vercel.com/docs/projects/project-configuration
Note that there is a _vercel_dev.json and a _vercel_prod.json. One is required for local dev and the other is required for prod. In package.json, notice in the deploy script, the _vercel_prod.json gets copied onto vercel.json and then after the build, _vercel_dev.json gets copied onto the vercel.json. I'd like the _vercel_dev.json to be the one in the source repo.