Move Nix files back to the root of the project

hosts/t490/services/cron.nix

@@ -0,0 +1,12 @@
+{ pkgs, ... }:
+
+{
+  services.cron = {
+    enable = true;
+
+    systemCronJobs = [
+      "*/15 * * * * opdavies ${pkgs.imapfilter}/bin/imapfilter -c ~/Code/email-filters/config.lua"
+      "0 8,20 * * * opdavies ${pkgs.isync}/bin/mbsync -a"
+    ];
+  };
+}

hosts/t490/services/default.nix

@@ -0,0 +1,31 @@
+{
+  imports = [
+    ./cron.nix
+    ./interception-tools.nix
+    ./redshift.nix
+    ./sound.nix
+    ./udev.nix
+    ./xserver.nix
+  ];
+
+  services = {
+    auto-cpufreq.enable = true;
+
+    avahi = {
+      enable = true;
+      nssmdns4 = true;
+      openFirewall = true;
+    };
+
+    blueman.enable = true;
+
+    gvfs.enable = true;
+    openssh.enable = true;
+    power-profiles-daemon.enable = false;
+    printing.enable = true;
+    pulseaudio.enable = false;
+    throttled.enable = true;
+    thermald.enable = true;
+    upower.enable = true;
+  };
+}

hosts/t490/services/interception-tools.nix

@@ -0,0 +1,25 @@
+{ pkgs, ... }:
+
+{
+  # Make Caps lock work as an Escape key on press and Ctrl on hold.
+  services.interception-tools =
+    let
+      dfkConfig = pkgs.writeText "dual-function-keys.yaml" ''
+        MAPPINGS:
+          - KEY: KEY_CAPSLOCK
+            TAP: KEY_ESC
+            HOLD: KEY_LEFTCTRL
+      '';
+    in
+    {
+      enable = true;
+      plugins = pkgs.lib.mkForce [ pkgs.interception-tools-plugins.dual-function-keys ];
+      udevmonConfig = ''
+        - JOB: "${pkgs.interception-tools}/bin/intercept -g $DEVNODE | ${pkgs.interception-tools-plugins.dual-function-keys}/bin/dual-function-keys -c ${dfkConfig} | ${pkgs.interception-tools}/bin/uinput -d $DEVNODE"
+          DEVICE:
+            NAME: "AT Translated Set 2 keyboard"
+            EVENTS:
+              EV_KEY: [[KEY_CAPSLOCK, KEY_ESC, KEY_LEFTCTRL]]
+      '';
+    };
+}

hosts/t490/services/redshift.nix

@@ -0,0 +1,31 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.nixosModules.redshift;
+in
+{
+  options.nixosModules.redshift.enable = mkEnableOption "Enable redshift";
+
+  config = mkIf cfg.enable {
+    location = {
+      latitude = 51.48;
+      longitude = -3.17;
+    };
+
+    services.redshift = {
+      enable = true;
+
+      brightness = {
+        day = "1";
+        night = "1";
+      };
+
+      temperature = {
+        day = 5500;
+        night = 3700;
+      };
+    };
+  };
+}

hosts/t490/services/sound.nix

@@ -0,0 +1,12 @@
+{
+  services.pipewire = {
+    enable = true;
+
+    alsa = {
+      enable = true;
+      support32Bit = true;
+    };
+
+    pulse.enable = true;
+  };
+}

hosts/t490/services/udev.nix

@@ -0,0 +1,9 @@
+{
+  services.udev = {
+    enable = true;
+
+    extraRules = ''
+      KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0660", GROUP="users", TAG+="uaccess", TAG+="udev-acl"
+    '';
+  };
+}

hosts/t490/services/xserver.nix

@@ -0,0 +1,10 @@
+{
+  services.xserver = {
+    enable = true;
+
+    xkb = {
+      layout = "gb";
+      variant = "";
+    };
+  };
+}