{ config, pkgs, inputs, lib, ... }: {
  imports = [ ];
  boot = {
    kernelPackages = pkgs.linuxPackages_rpi4;
    tmpOnTmpfs = true;
    initrd.availableKernelModules = [ "usbhid" "usb_storage" ];
    kernelParams = [
      "8250.nr_uarts=1"
      "console=ttyAMA0,115200"
      "console=tty1"
      # Some gui programs need this
      "cma=128M"
    ];
  };

  boot.loader.raspberryPi = {
    enable = true;
    version = 4;
  };
  boot.loader.grub.enable = false;
  boot.loader.generic-extlinux-compatible.enable = true;
  networking = {
    hostName = "rpi4-8";
    networkmanager = { enable = true; };
  };

  environment.systemPackages = with pkgs; [ neovim htop ];

  services.fail2ban.enable = true;

  services.openssh = {
    enable = true;
    permitRootLogin = "prohibit-password";
    passwordAuthentication = false;
  };

  users.extraUsers.root.openssh.authorizedKeys.keys = [
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE5Ejx5CAPUfHVXi4GL4WmnZaG8eiiOmsW/a0o1bs1GF cyryl@foureighty"
  ];
  fileSystems = {
    "/" = {
      device = "/dev/disk/by-label/NIXOS_SD";
      fsType = "ext4";
      options = [ "noatime" ];
    };
  };
  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";

  security.allowUserNamespaces = true;

  time.timeZone = "Europe/London";

}