If you are a macOS user like me, and you want to create a Clover Bootloader USB on it just so that you can boot up the operating systems that are installed on PCIe NVMe SSDs on your archaic hardware using legacy BIOS? Then you've come to the right place. You may be a homelabber like myself wanting to boot up the hypervisor (e.g. Proxmox).
I've spent numerous hours, searching for a clear step-to-step guide on this, and apparently there isn't an easily-searchable one for macOS users at the time of this writing. Fortunately for us, the Clover project, hosted on GitHub, has a convenient package for us to create a bootloader USB. This project is also hosted on SourceForge.