congratulations! you have successfully installed arch linux on your machine after a few explosions of grub, systemd-boot, and archinstall, but your machine should be relatively stable now; good work. :blobcatthumbsup: :neocat_heart:

now, in the rare occasion of your bootloader / systemd / anything else blow up again, adding a USB drive that has a bootable arch install ISO to your everyday carry is strongly recommended -- it can help you boot into your existing environment, or as a last resort, help you do a fresh install when you are out and about.

make sure this USB drive is almost always with you, but rest assured, the arch linux community have figured this out.