{ config, pkgs, ... }:

{

  boot.kernelParams = [ "amd_iommu=on" "pcie_aspm=off" ];
  boot.kernelModules = [ "kvm-amd" ];
  boot.extraModprobeConfig = "options kvm_amd nested=1";

  # Enable dconf (System Management Tool)
  # programs.dconf.enable = true;

  # Add user to libvirtd group
  users.users.zulumann.extraGroups = [ "libvirtd" "kvm" ];

  # Install necessary packages
  environment.systemPackages = with pkgs; [
    libvirt
    qemu
    qemu_kvm
    OVMFFull
    virt-manager
    virt-viewer
    spice spice-gtk
    spice-protocol
    adwaita-icon-theme
    python3
    iproute2
    bridge-utils
  ];

  # Manage the virtualisation services
  virtualisation = {
    libvirtd = {
      enable = true;
      qemu = {
        swtpm.enable = true;
        ovmf.enable = true;
        ovmf.packages = [ pkgs.OVMFFull.fd ];
      };
    };
    spiceUSBRedirection.enable = true;
  };

  # Enable VirtioFS
  virtualisation.libvirtd.qemu.vhostUserPackages = [ pkgs.virtiofsd ];

  environment.sessionVariables.LIBVIRT_DEFAULT_URI = [ "qemu:///system" ];
  services.spice-vdagentd.enable = true;

  # Enable Bridge-Network
  networking.firewall.checkReversePath = false;
  networking.interfaces.eth0.useDHCP = true;
  networking.interfaces.br-lan.useDHCP = true;
  networking.bridges = {
    "br-lan" = {
      interfaces = [ "eth0" ];
    };
  };

}