How to make a program to run on boot time?

To make a program run at boot time, you can use different methods depending on your operating system. For Windows, you can place a shortcut to the program in the "Startup" folder, accessible via shell:startup in the Run dialog. On Linux, you can add the program to the system's init system (like systemd) by creating a service file in /etc/systemd/system/ and enabling it with systemctl enable your-service-name. For macOS, you can use launchd by creating a plist file in ~/Library/LaunchAgents/ and loading it with launchctl load.