Add new machine Marid.

machines/Marid/hardware-configuration.nix

@@ -0,0 +1,79 @@
+{ config, pkgs, modulesPath, ... }:
+
+let
+  cfg = config.machine;
+in {
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot = {
+    loader.systemd-boot = {
+      enable = true;
+    };
+    loader.efi.canTouchEfiVariables = true;
+    tmpOnTmpfs = true;
+    cleanTmpDir = true;
+
+    kernelPackages = pkgs.linuxPackages_latest;
+    initrd.availableKernelModules = [ "nvme" "xhci_pci" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+    kernelModules = [ "kvm-amd" ];
+    kernelParams = [
+      # get backlight service to work part one (fixes systemd backlight service)
+      "acpi_backlight=native"
+    ];
+    kernel.sysctl = {
+      "kernel.nmi_watchdog" = 0;
+      "fs.inotify.max_user_watches" = 524288;
+      "vm.dirty_writeback_centisecs" = 1500;
+    };
+  };
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/cf8db7d5-5da7-4fb9-818d-ed5dd2815f0d";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/96E4-9DF3";
+      fsType = "vfat";
+    };
+
+  hardware = {
+    firmware = with pkgs; [ firmwareLinuxNonfree ];
+    enableAllFirmware = true;
+    ksm.enable = true;
+    opengl = {
+      driSupport = true;
+      driSupport32Bit = true;
+    };
+
+    pulseaudio = {
+      enable = true;
+      support32Bit = true;
+      package = pkgs.pulseaudioFull;
+      zeroconf.discovery.enable = false;
+      extraClientConf = ''
+        autospawn = no
+      '';
+    };
+
+    bluetooth = {
+      enable = true;
+      powerOnBoot = true;
+    };
+  };
+
+  powerManagement = {
+    enable = true;
+    cpuFreqGovernor = "powersave";
+  };
+  services = {
+    upower.enable = true;
+    # Fix Backlight Part 2 (allows acpilight to modify brightness)
+    udev.extraRules = ''
+      ACTION=="add", SUBSYSTEM=="backlight", RUN+="${pkgs.coreutils}/bin/chgrp video /sys/class/backlight/%k/brightness"
+      ACTION=="add", SUBSYSTEM=="backlight", RUN+="${pkgs.coreutils}/bin/chmod 664 /sys/class/backlight/%k/brightness"
+    '';
+  };
+
+  time.timeZone = "Europe/Berlin";
+}