os/hosts/dumpyourvms/dumpyourvms.nix

{
  config,
  pkgs,
  lib,
  self,
  ...
}:
with lib; let
  psCfg = config.pub-solar;
  xdg = config.home-manager.users."${psCfg.user.name}".xdg;
in {
  imports = [
    ./hardware-configuration.nix
  ];

  config = {
    age.secrets.environment-secrets = {
      file = "${self}/secrets/environment-secrets.age";
      mode = "700";
      owner = "teutat3s";
    };

    age.secrets.github-api-token = {
      file = "${self}/secrets/github-api-token.age";
      mode = "600";
      owner = "teutat3s";
      path = "/home/${psCfg.user.name}/.local/share/github/api-token";
    };

    pub-solar = {
      audio.mopidy.enable = lib.mkForce false;
      core.hibernation = {
        enable = true;
        resumeDevice = "/dev/mapper/cryptroot";
        resumeOffset = 47366144;
      };
      virtualisation.enable = true;
    };

    # Fix backlight for keyboard and brightness, adjust function key binding,
    # intel_pstate for cpu schedutil
    # For now, the radeon driver seems to work better than amdgpu with Radeon R9 M370X
    # Explicitly set amdgpu support in place of radeon
    # Source: https://github.com/NixOS/nixos-hardware/blob/master/common/gpu/amd/southern-islands/default.nix
    # Try again after https://lists.freedesktop.org/archives/amd-gfx/2023-March/090096.html lands
    boot.kernelParams = ["acpi_backlight=video" "hid_apple.fnmode=2" "intel_pstate=passive" "radeon.si_support=0" "amdgpu.si_support=1"];
    boot.loader.efi.canTouchEfiVariables = true;

    # Fix for Error switching console mode to 1: unsupported on startup
    boot.loader.systemd-boot.consoleMode = mkForce "0";

    boot.binfmt.emulatedSystems = ["aarch64-linux"];

    systemd.sleep.extraConfig = ''
      HibernateMode=shutdown
    '';

    hardware = {
      cpu.intel.updateMicrocode = true;
      facetimehd.enable = true;
      opengl = {
        extraPackages = with pkgs; [intel-media-driver];
      };
    };

    services.resolved = {
      enable = true;
      # DNSSEC=false because of random SERVFAIL responses with Greenbaum DNS
      # when using allow-downgrade, see https://github.com/systemd/systemd/issues/10579
      extraConfig = ''
        DNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 5.9.164.112#dns3.digitalcourage.de 89.233.43.71#unicast.censurfridns.dk 185.49.141.37#getdnsapi.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net 2a01:4f8:251:554::2#dns3.digitalcourage.de 2a01:3a0:53:53::0#unicast.censurfridns.dk 2a04:b900:0:100::38#getdnsapi.net
        FallbackDNS=9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
        Domains=~.
        DNSOverTLS=yes
        DNSSEC=false
      '';
    };
    networking = import ./networking.nix;
    services.tailscale.enable = true;

    security.pki.certificateFiles = [./consul-agent-ca.pem];

    # Power off dedicated GPU, use only integrated Intel GPU to save battery
    # https://github.com/NixOS/nixpkgs/pull/33915
    # https://ubuntuforums.org/showthread.php?t=2409856
    systemd.services."amd-hybrid-graphics-power-save" = {
      path = [pkgs.bash];
      description = "Power Off dedicated AMD Card to reduce power usage";
      requires = ["sys-kernel-debug.mount"];
      enable = true;
      serviceConfig = {
        Type = "oneshot";
        RemainAfterExit = true;
        ExecStart = "${pkgs.bash}/bin/sh -c 'sleep 7 && if grep --quiet 'IGD:+' /sys/kernel/debug/vgaswitcheroo/switch; then echo -e \"IGD\\nOFF\" > /sys/kernel/debug/vgaswitcheroo/switch; fi'";
        ExecStop = "${pkgs.bash}/bin/sh -c 'echo ON >/sys/kernel/debug/vgaswitcheroo/switch'";
      };
      wantedBy = ["multi-user.target"];
    };

    # Increase console font size for HiDPI display
    console = {
      earlySetup = true;
      font = lib.mkForce "ter-i32b";
      packages = [pkgs.terminus_font];
    };

    # Thunderbolt tools
    services.hardware.bolt.enable = true;

    powerManagement = {
      # Use new schedutil govenor
      # https://github.com/NixOS/nixpkgs/pull/42330
      # https://www.kernel.org/doc/html/v5.10/admin-guide/pm/cpufreq.html#schedutil
      cpuFreqGovernor = lib.mkDefault "schedutil";

      # brcmfmac being loaded during hibernation would inhibit a successful resume
      # https://bugzilla.kernel.org/show_bug.cgi?id=101681#c116.
      # Also brcmfmac could randomly crash on resume from sleep.
      # To hibernate successfully using the amdgpu driver, the dedicated GPU needs
      # to be powered on.
      powerUpCommands = lib.mkBefore (
        "${pkgs.kmod}/bin/modprobe brcmfmac"
        + lib.optionalString
        (lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.2") " brcmfmac_wcc"
      );
      powerDownCommands = lib.mkBefore (
        lib.optionalString
        (lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.2")
        "${pkgs.kmod}/bin/rmmod brcmfmac_wcc\n"
        + ''
          ${pkgs.kmod}/bin/rmmod brcmfmac
          ${pkgs.systemd}/bin/systemctl stop amd-hybrid-graphics-power-save.service
        ''
      );
      resumeCommands =
        if config.systemd.services."amd-hybrid-graphics-power-save".enable == true
        then ''
          ${pkgs.systemd}/bin/systemctl start amd-hybrid-graphics-power-save.service
        ''
        else "";
    };

    # Change lid switch behaviour
    services.logind.lidSwitch = "hibernate";

    # TLP for power management
    services.tlp = {
      enable = true;
      settings = {
        CPU_SCALING_GOVERNOR_ON_AC = "performance";
        CPU_SCALING_GOVERNOR_ON_BAT = "schedutil";
        CPU_BOOST_ON_AC = 1;
        CPU_BOOST_ON_BAT = 0;
      };
    };

    services.udev.extraRules =
      # Disable XHC1 wakeup signal to avoid resume getting triggered some time
      # after suspend. Reboot required for this to take effect.
      lib.optionalString
      (lib.versionAtLeast config.boot.kernelPackages.kernel.version "3.13")
      ''SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"'';

    services.printing.enable = true;

    home-manager = pkgs.lib.setAttrByPath ["users" psCfg.user.name] {
      # Custom device sway configs
      xdg.configFile = mkIf psCfg.sway.enable {
        "sway/config.d/10-applications.conf".source = ./.config/sway/config.d/applications.conf;
        "sway/config.d/autostart.conf".source = ./.config/sway/config.d/autostart.conf;
        "sway/config.d/10-custom-keybindings.conf".source = ./.config/sway/config.d/custom-keybindings.conf;
        "sway/config.d/input-defaults.conf".source = ./.config/sway/config.d/input-defaults.conf;
        "sway/config.d/screens.conf".source = ./.config/sway/config.d/screens.conf;
      };
    };

    # WLAN frequency compliance (e.g. check for radar with DFS)
    hardware.firmware = with pkgs; [wireless-regdb];
    boot.extraModprobeConfig = ''
      options cfg80211 ieee80211_regdom="DE"

      # Enable the integrated GPU (iGPU) Intel i915 by default if present
      options apple-gmux force_igd=y
    '';

    # This value determines the NixOS release from which the default
    # settings for stateful data, like file locations and database versions
    # on your system were taken. It‘s perfectly fine and recommended to leave
    # this value at the release version of the first install of this system.
    # Before changing this value read the documentation for this option
    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
    system.stateVersion = "21.05"; # Did you read the comment?
  };
}