If you're using Makefiles or other similar build systems, it should be fairly easy. Just have you Makefile throw all your OS files in a directory after building them and then use something like xorriso (on Linux) to turn taht directory into an ISO file. From the Makefile for the Astral OS ( https://github.com/Mathewnd/Astral/blob/rewrite/Makefile ): xorriso -as mkisofs -b limine-bios-cd.bin -no-emul-boot -boot-load-size 4 -boot-info-table --efi-boot limine-uefi-cd.bin -efi-boot-part --efi-boot-image --protective-msdos-label $(ISODIR) -o $(ISO) In this case, $(ISODIR) is the directory I was talking about earlier and $(ISO) is the name of the ISO file. For example: $(ISODIR) could be ./iso_root/ and $ISO) could be ./my_os.iso. All the options you see mentioning "limine" are related to the Limine Bootloader, if you're not using it you should replace them with your bootloader of choice. Another example from my old OS ( https://github.com/Alessandro-Salerno/SalernOS/blob/main/Makefile ): xorriso -as mkisofs -b limine-bios-cd.bin \ -no-emul-boot -boot-load-size 4 -boot-info-table \ --efi-boot limine-uefi-cd.bin \ -efi-boot-part --efi-boot-image --protective-msdos-label \ iso_root -o $(IMAGE_NAME).iso ./limine/limine bios-install $(IMAGE_NAME).iso As you can see, this is quite similar. Hope I could help, I've stopped doing osdev quite a while ago so my memory is a bit funky. Answer from Putrid-Luck4610 on reddit.com