ESP=/dev/nvme0n1p1
ROOT=/dev/nvme0n1p2
SWAPFILESIZE=2G

mkfs.btrfs -L ROOT $ROOT

mount $ROOT /mnt
btrfs sub create /mnt/@
btrfs sub create /mnt/@swap
btrfs sub create /mnt/@home
btrfs sub create /mnt/@pkg
btrfs sub create /mnt/@snapshots
btrfs sub create /mnt/@vm
umount /mnt

# For configure mount options, see https://btrfs.wiki.kernel.org/index.php/FAQ#Can_I_mount_subvolumes_with_different_mount_options.3F
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvol=@          $ROOT /mnt
mkdir -p /mnt/{boot,home,var/cache/pacman/pkg,.snapshots,btrfs,/var/lib/libvirt}
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvol=@home      $ROOT /mnt/home
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvol=@pkg       $ROOT /mnt/var/cache/pacman/pkg
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvol=@snapshots $ROOT /mnt/.snapshots
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvol=@vm        $ROOT /mnt/var/lib/libvirt
mount -o noatime,nodiratime,compress=zstd,space_cache=v2,ssd,subvolid=5        $ROOT /mnt/btrfs
mount $ESP /mnt/boot

# Create swapfile
btrfs filesystem mkswapfile --size $SWAPFILESIZE --uuid clear /mnt/btrfs/@swap/swapfile
swapon /mnt/btrfs/@swap/swapfile

pacstrap -K /mnt base linux linux-firmware intel-ucode sof-firmware networkmanager man-db man-pages neovim grub efibootmgr zsh sudo