btw i partition drives (i did custom partition)
btw i partition drives (i did custom partition)

manual partitioning scheme:
mount point: /boot/efi
format: vfat
size: 300MB
(optional: use existing system efi partition)
mount point: /boot
format: ext4
size: 1GB
mount point:
format: btrfs
size: [max]
mount point: /
format: btrfs (subvolume)
mount point: /var
format: btrfs (subvolume)
mount point: /var/home
format: btrfs (subvolume)