Setup new M1 MacBook as 'Moissanite' with Asahi Linux

Signed-off-by: Mel <mel@rnrd.eu>

6 files changed, 168 insertions, 0 deletions

diff --git a/machines/bismuth/devices.nix b/machines/bismuth/devices.nix
index b5a6e16..6aa4122 100644
--- a/machines/bismuth/devices.nix
+++ b/machines/bismuth/devices.nix
@@ -3,6 +3,8 @@
 {
   # boot settings
   boot = {
+    kernelPackages = pkgs.linuxPackages_latest;
+
     loader.grub = {
       enable = true;
       devices = [ "nodev" ];
diff --git a/machines/graphite/devices.nix b/machines/graphite/devices.nix
index be777a9..c9851c3 100644
--- a/machines/graphite/devices.nix
+++ b/machines/graphite/devices.nix
@@ -8,6 +8,8 @@
 
   # boot settings
   boot = {
+    kernelPackages = pkgs.linuxPackages_latest;
+
     loader.systemd-boot.enable = true;
     loader.efi.canTouchEfiVariables = true;
 
diff --git a/machines/moissanite/default.nix b/machines/moissanite/default.nix
new file mode 100644
index 0000000..8a306d5
--- /dev/null
+++ b/machines/moissanite/default.nix
@@ -0,0 +1,12 @@
+{ ... }:
+
+{
+  imports = [
+    ../../modules/common.nix
+
+    ./hardware.nix
+    ./devices.nix
+  ];
+
+  system.stateVersion = "25.05";
+}
diff --git a/machines/moissanite/devices.nix b/machines/moissanite/devices.nix
new file mode 100644
index 0000000..d6c4d2c
--- /dev/null
+++ b/machines/moissanite/devices.nix
@@ -0,0 +1,94 @@
+{
+  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;
+
+    # 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;
+  };
+}
diff --git a/machines/moissanite/hardware.nix b/machines/moissanite/hardware.nix
new file mode 100644
index 0000000..45661b5
--- /dev/null
+++ b/machines/moissanite/hardware.nix
@@ -0,0 +1,49 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "usb_storage"
+    "sdhci_pci"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/3ae7395f-1b2c-407a-9ea5-3baeeabca370";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/C6F0-0913";
+    fsType = "vfat";
+    options = [
+      "fmask=0022"
+      "dmask=0022"
+    ];
+  };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlan0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+}
diff --git a/machines/moissanite/home.nix b/machines/moissanite/home.nix
new file mode 100644
index 0000000..8f27ed2
--- /dev/null
+++ b/machines/moissanite/home.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+{
+  imports = [
+    ../../modules/home/common.nix
+  ];
+
+  home.stateVersion = "25.05";
+}