Clover is open source based on different projects: Clover, rEFIt, XNU, VirtualBox. The main is EDK2 latest revision.
The Clover EFI software comes with its own installer package, which means that the entire process is reduced to simply following the on-screen instructions. Naturally, you will have to provide the credentials for your computer’s admin account.
Noteworthy is that you have the option to personalize the bootloader’s installation: you can choose to install Clover EFI for UEFI booting only, you can install Clover EFI in the ESP, you can apply a custom theme, decide which drives or scripts should be deployed, and so on.