{ config, lib, pkgs, ... }:
{
  virtualisation.oci-containers.containers.fedora-dracut = {
    pull = "newer";
    autoStart = false;
    entrypoint = "bash";
    image = "docker.io/fedora:latest";
    cmd = [ "/data/workdir/entry.sh" ];
    volumes = [
      "/srv/nfs/arch/lower:/data/arch:ro"
      "/var/lib/podman-dracut:/data/workdir"
      "/srv/nfs/fedora/lower:/data/fedora:ro"
    ];
  };
  services = {
    nfs.server = {
      enable = true;
      exports = let
        clients."10.2.0.0/16" = [ "mp" "rw" "no_root_squash" ];
      in {
        "/srv/nfs/arch/root" = clients;
        "/srv/nfs/fedora/root" = clients;
      };
    };
    dnsmasq = {
      enable = true;
      settings = {
        enable-ra = true;
        no-resolv = true;
        cache-size = 4096;
        bogus-priv = true;
        enable-tftp = true;
        interface = "enp1s0";
        domain-needed = true;
        tftp-root = "/srv/tftp";
        dhcp-boot = "grubx64.efi";
        server = [ "1.1.1.2" "2606:4700:4700::1112"
        "1.0.0.2" "2606:4700:4700::1002" ];
        dhcp-range = [ "10.2.0.2,10.2.255.254,12h"
        "fc02::2,fc02::ffff:ffff:ffff:ffff,12h" ];
      };
    };
  };
  systemd = {
    tmpfiles.rules = [ "d /var/lib/podman-dracut 0755 root root -" ];
    services.pxeboot = {
      serviceConfig.Type = "oneshot";
      #wantedBy = [ "multi-user.target" ];
      path = with pkgs; [ xz e2fsprogs grub2_efi util-linux ];
      script = let
        resolv = pkgs.writeText "resolv.conf" ''
          nameserver fc02::1
          nameserver 10.2.0.1
          options edns0 trust-ad
        '';
        entryScript = pkgs.writeText "entry.sh" ''
          set -e
          dnf install -y dracut-network nfs-utils
          cd /data/workdir
          for target in $(cd ..; ls | grep -v workdir); do
            modsDir=../$target/usr/lib/modules/*
            mkdir $target
            cp $modsDir/vmlinuz $target
            dracut -Nm "network-manager nfs" --zstd -k $modsDir \
              --kver $(basename $modsDir) $target/initramfs
          done
        '';
        grubCfg = pkgs.writeText "grub.cfg" ''
          set timeout=5
          #set path=(http,$net_default_server)/local/boot/pxe
          set nfs="rw ip=dhcp root=nfs4:$net_default_server:/srv/nfs"
          function load {
            linux $path/$1/vmlinuz $nfs/$1/root $2
            initrd $path/$1/initramfs
          }
          menuentry Arch {
            load arch
          }
          menuentry Fedora {
            load fedora selinux=0
          }
        '';
      in ''
        for distro in arch:arch/x86_64/airootfs.sfs fedora:LiveOS/squashfs.img; do
          rootfs=''${distro##*:}
          distro=''${distro%:*}
          cd /srv/nfs/$distro
          mkdir -p loop work lower upper #root -> move to tmpfiles
          mountpoint -q loop || mount $distro.iso loop
          mountpoint -q lower || mount loop/$rootfs lower
          mountpoint -q root || mount -t overlay overlay -o workdir=work,nfs_export=on,lowerdir=lower,upperdir=upper root
          if [ ! -e upper/etc/resolv.conf ]; then
            cd root/etc
            rm -f resolv.conf
            cp ${resolv} resolv.conf
            chattr +i resolv.conf
          fi
        done
        cd /srv
        #either check of tftp dir, or file in tftp, if it forced to exists through tmpfiles
        if [ ! -e grubx64.efi ]; then
          grub-mkstandalone -O x86_64-efi --compress=xz -o grubx64.efi #--modules=efinet /boot/grub/grub.cfg=${grubCfg}
        fi
        if [ ! -e pxe ]; then
          mkdir pxe
          cp ${entryScript} /var/lib/podman-dracut/entry.sh
          systemctl --wait start podman-fedora-dracut.service
          mv /var/lib/podman-dracut/*/ pxe
          chmod -R 640 pxe
          chgrp -R php pxe
          chmod ug+x $(find pxe -type d)
        fi
      '';
    };
  };
}