If you ever are stuck with Omarchy like I did with a bad hyperland.conf and you have no access to the system, then boot with the ISO with USB and exit from the installer.
Then:
lsblkoffdisk -lto find your partition. Mine is NVME so I used that onecrypsetup luksOpen /dev/your-root-partition cryptroot# this will prompt your passwordmount /dev/mapper/cryptroot /mnt