{ user, ...} :
{
services = {
blueman.enable = true;      # bluetooth manager
fwupd.enable = true;      # firmware updating service
fstrim.enable = true;       # ssd maintenance service
thermald.enable = true;     # thermal regulation service
printing.enable = true;     # printing services, cups
gnome.gnome-keyring.enable = true;  # keyring
flatpak.enable = true;      # allow installing things from flatpaks
#flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

# printer discovery
avahi = {
  enable = true;
  nssmdns4 = true;
  openFirewall = true;
};
};

virtualisation.docker.enable = true;  # enable docker
users.users.${user.username}.extraGroups = [ "docker" ]; # add self to docker user group
}