Regarding deployment in server about razzle HOT 5 OPEN

Install the mod_proxy module for Apache.
Build your Razzle app and copy the build folder to your Apache server.
Create an Apache virtual host configuration file for your Razzle app.
Enable the virtual host and restart Apache.

Install pm2 globally.
Start your app using pm2.
Save the pm2 process list.
Create a systemd service file for your app.
Reload the systemd daemon.
Enable and start the systemd service.

<VirtualHost *:80>
  ServerName example.com
  ServerAlias www.example.com

  # Serve the public directory of the Razzle app
  Alias "/public" "/var/www/my-razzle-app/build/public"
  <Directory "/var/www/my-razzle-app/build/public">
    Options Indexes FollowSymLinks
    AllowOverride None
    Require all granted
  </Directory>

  # Proxy requests to Razzle app running on port 3000
  ProxyPreserveHost On
  ProxyPass / http://localhost:3000/
  ProxyPassReverse / http://localhost:3000/
</VirtualHost>

[Unit]
Description=My Razzle App
After=network.target

[Service]
Type=simple
User=<user>
ExecStart=/usr/bin/pm2 start /path/to/razzle/app/pm2.config.js --env production
ExecReload=/usr/bin/pm2 reload /path/to/razzle/app/pm2.config.js --env production
ExecStop=/usr/bin/pm2 stop /path/to/razzle/app/pm2.config.js --env production
WorkingDirectory=/path/to/razzle/app
Restart=on-failure
RestartSec=10s

[Install]
WantedBy=multi-user.target