WebSocket References

• Ratchet - Creating Your First Application
• Composer Documentation
• How to Install and Use PHP Composer on Debian 10 Do not follow the step "sudo apt install wget php-cli php-zip unzip" as this will install PHP 7.4. FreePBX is not compatible with PHP 7.4. FreePBX will no longer work if PHP 7.4 is installed.
• How to Create a WebSocket Server in PHP with Ratchet for Real-Time Applications
• How to Execute a Command or Script at Reboot or Startup