nix-config/hosts/pulsebert/default.nix

{ config, lib, pkgs, ... }:

{
  imports = [
    ./hardware-configuration.nix
  ];

  c3d2 = {
    hq.interface = "eth0";
    hq.statistics.enable = true;
    k-ot.enable = true;
  };

  boot = {
    growPartition = true;
    kernelParams = [ "console=tty0" ];
    loader.grub.enable = false;
    loader.efi.canTouchEfiVariables = true;
    supportedFilesystems = lib.mkForce [ "vfat" "ext4" ];
    tmp.useTmpfs = true;
  };

  hardware = {
    bluetooth.enable = true;
    deviceTree.enable = true;
  };

  nix.settings = {
    cores = 2;
    max-jobs = 1;
  };

  nixpkgs.config.packageOverrides = pkgs: {
    makeModulesClosure = x:
      # prevent kernel install fail due to missing modules
      pkgs.makeModulesClosure (x // { allowMissing = true; });
  };

  networking = {
    domain = "hq.c3d2.de";
    hostName = "pulsebert";
    useDHCP = false;
    interfaces.eth0.useDHCP = true;
  };

  # https://github.com/dump-dvb/nix-config/blob/310ceedca5ab2d5c22070bd73c603926b6100a74/hardware/configuration-rpi-3b.nix#L16
  sdImage = lib.mkForce {
    populateFirmwareCommands =
      let
        configTxt = pkgs.writeText "config.txt" ''
          [pi3]
          kernel=u-boot-rpi3.bin
          hdmi_force_hotplug=1
          [pi02]
          kernel=u-boot-rpi3.bin
          [pi4]
          kernel=u-boot-rpi4.bin
          enable_gic=1
          armstub=armstub8-gic.bin
          # Otherwise the resolution will be weird in most cases, compared to
          # what the pi3 firmware does by default.
          disable_overscan=1
          # Supported in newer board revisions
          arm_boost=1
          [cm4]
          # Enable host mode on the 2711 built-in XHCI USB controller.
          # This line should be removed if the legacy DWC2 controller is required
          # (e.g. for USB device mode) or if USB support is not required.
          otg_mode=1
          [all]
          # Boot in 64-bit mode.
          arm_64bit=1
          # U-Boot needs this to work, regardless of whether UART is actually used or not.
          # Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
          # a requirement in the future.
          enable_uart=1
          # Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
          # when attempting to show low-voltage or overtemperature warnings.
          avoid_warnings=1
        '';
      in
      ''
        (cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
        # Add the config
        cp ${configTxt} firmware/config.txt
        # Add pi3 specific files
        cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
        # Add pi4 specific files
        cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
        cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-400.dtb firmware/
        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4.dtb firmware/
        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4s.dtb firmware/
      '';
    populateRootCommands = ''
      mkdir -p ./files/boot
      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
    '';
  };

  security.sudo = {
    enable = true;
    wheelNeedsPassword = false;
  };

  system.stateVersion = "22.11";
}