THE_DEV=/dev/sda
THE_HOSTNAME=somehost
THE_USERNAME=someuser


gdisk $THE_DEV
ESP 200M ef00
XBOOTLDR 824M
LUKSROOT


vgcreate $THE_HOSTNAME /dev/disk/by-partlabel/LUKSROOT
lvcreate -L16G -nswap $THE_HOSTNAME
lvcreate -l100%FREE -nroot $THE_HOSTNAME

mount /dev/mapper/$THE_HOSTNAME-root /mnt/
cd /mnt/
btrfs fi label /mnt/ btrfsroot
btrfs subv create @root
btrfs subv set-default /mnt/@root
btrfs subv create @$THE_USERNAME
btrfs subv create @apt
btrfs subv create @varlog
btrfs subv create @vartmp; chmod 1777 @vartmp ; chmod 0755 @root/var/tmp
umount /mnt/
mount /dev/mapper/$THE_HOSTNAME-root /mnt/

mkdir -p /mnt/etc/
cat <<EOT > /mnt/etc/fstab
LABEL=btrfsroot             /                   btrfs   subvol=@root,discard,compress,nodev             0 0
LABEL=btrfsroot             /btrfs              btrfs   subvol=/,discard,compress,nodev,nosuid          0 0
LABEL=btrfsroot             /home/$THE_USERNAME btrfs   subvol=@$THE_USERNAME,discard,compress,nodev,nosuid      0 0
LABEL=btrfsroot             /var/cache/apt      btrfs   subvol=@apt,discard,compress,nodev,nosuid       0 0
LABEL=btrfsroot             /var/log            btrfs   subvol=@varlog,discard,compress,nodev,nosuid    0 0
LABEL=btrfsroot             /var/tmp            btrfs   subvol=@vartmp,discard,compress,nodev,nosuid    0 0
PARTLABEL=XBOOTLDR          /boot               ext4    discard,nodev,nosuid,noexec                     0 0
PARTLABEL=ESP               /boot/efi           vfat    discard,nodev,nosuid,noexec                     0 0
LABEL=swap                  swap                swap    discard                                         0 0
tmpfs                       /tmp                tmpfs   nosuid,nodev                                    0 0
EOT


debootstrap bookworm /mnt/ https://deb.debian.org/debian

cat <<EOT > /mnt/etc/apt/sources.list
deb https://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
deb https://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware
deb https://deb.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
EOT


for i in /dev /proc /sys /run /tmp; do mount --rbind $i /mnt$i; done
chroot /mnt/
mkdir -p /btrfs/ /boot/efi/ /home/$THE_USERNAME /var/cache/apt/ /var/tmp/


mkdir /run/systemd/resolve/
[ -f /run/systemd/resolve/stub-resolv.conf ] || echo 'nameserver 1.1.1.1' > /run/systemd/resolve/stub-resolv.conf


echo $THE_HOSTNAME > /etc/hostname
ln -sf /usr/share/zoneinfo/Australia/Sydney /etc/localtime
echo do_symlinks=no > /etc/kernel-img.conf


dpkg-reconfigure locales
apt-get install aptitude curl git python3 vim


cd /root/
curl -sSfL https://code.delx.au/p/dotfiles | bash
exit


chroot /mnt/
cd /root

mkdir /root/bin/
git clone https://code.delx.au/monosys
ln -s /root/monosys/bin /root/bin/monosys-bin

mkdir /root/monosys/package-lists/local
ln -s /root/monosys/package-lists/local /root/.aptorphan
cd /root/monosys/package-lists/local
for i in base base-hw desktop-base desktop-gnome desktop-gnome-software desktop-plymouth desktop-printing filesystems multimedia-players wifi; do ln -s ../debian/$i; done
cp ../debian/system-efi-amd64 .

apt-get update
aptorphan

systemctl disable ssh
find /etc/systemd/system -xtype l -delete

mv /etc/default/grub{,.bak}
cp /root/monosys/etc/default/grub /etc/default/grub
grub-install
update-grub

passwd root
adduser $THE_USER
gpasswd -a $THE_USER sudo

plymouth-set-default-theme spinner



# reboot

flatpak remote-add flathub https://dl.flathub.org/repo/flathub.flatpakrepo