This post explains how to serve a local ReactJS project on a computer and make it available automatically after system boot for demos or shared development environments.
Install 'serve' globally using 'npm i -g serve' and note the path using 'which serve'.
Create a shell script named 'always-on-reactjs-application-script.sh' to navigate to the project directory and serve the build folder on port 8080.
Create a systemd service to run the script at boot to enable and start the service. Share your local IP address with team members to access the React app over Wi-Fi.