An NPM script for starting both the main server with npm start, and a react local server with npm start in separate windows. (Assumes folder structure: root->client, server

dualStartScript.json

"scripts":{
    "predualStart": "echo \"DIR=\"$0\"; cd \"$DIR\"; echo \"Launching React Client in New Window\"; echo \"Current directory: \"$PWD\"\"; npm --prefix \"$PWD\"/../client start;\" > clientStarter.sh && chmod +x clientStarter.sh && open -a Terminal clientStarter.sh",
    "dualStart": "trap 'rm clientStarter.sh' SIGINT &&  nodemon --inspect -r dotenv/config -i index.js",
}