machines/moissanite/devices.nix


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115

{
  config,
  lib,
  pkgs,
  nixos-apple-silicon,
  ...
}:

{
  imports = [
    nixos-apple-silicon.nixosModules.apple-silicon-support
  ];

  # boot settings
  boot = {
    loader.systemd-boot.enable = true;
    loader.efi.canTouchEfiVariables = false;

    plymouth.enable = true;

    initrd.systemd.enable = true;

    # expand display to notch region
    kernelParams = [
      "apple_dcp.show_notch=1"
    ];

    # check nixos-apple-silicon documentation on this,
    # if keyboard weirdness ever comes up.
    # extraModprobeConfig = ''
    #   options hid_apple iso_layout=0
    # '';

    # show a nix logo on asahi m1n1 boot!
    m1n1CustomLogo = ../../assets/nix-256x256.png;
  };

  # swap
  zramSwap = {
    enable = true;
    algorithm = "zstd";
    swapDevices = 1;
    memoryPercent = 50;
  };

  # hardware
  hardware = {
    enableAllFirmware = true;
    enableRedistributableFirmware = true;

    graphics = {
      enable = true;
      enable32Bit = lib.mkForce false;
    };
    bluetooth.enable = true;

    # asahi-specific settings!
    asahi = {
      enable = true;

      # proprietary apple firmware extracted during installation.
      # it can also be found in /boot/asahi, but needs to be
      # included here for flake purity.
      peripheralFirmwareDirectory = ../../assets/m1-firmware;

      # mesa
      useExperimentalGPUDriver = true;
      experimentalGPUInstallMode = "replace"; # probably no longer used.
      # sound
      setupAsahiSound = true;
      # kernel
      withRust = true;
    };
  };

  # internet/wifi
  networking = {
    networkmanager = {
      enable = true;
      wifi.backend = "iwd";
    };
    wireless.iwd = {
      enable = true;
      settings.General.EnableNetworkConfiguration = true;
    };
  };

  # sound
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa = {
      enable = true;
      support32Bit = true;
    };
    pulse.enable = true;
    jack.enable = true;
  };

  fileSystems."/mnt/Dao" = {
    device = "/dev/disk/by-label/Dao";
    fsType = "btrfs";
    options = [
      "users" # any user can mount and unmount dao
      "nofail" # it's okay if dao can't be found
      "noatime" # do not update access timestamps (files+folders)
      "x-gvfs-show" # show dao in (i.e.) nautilus

      # btrfs options
      "compress=zstd" # compress data with zstd, level 3
    ];
  };

  services.btrfs.autoScrub.enable = true;
}