separate xorg and i3

flake.nix

@@ -41,8 +41,11 @@
             ./nixos/configuration.nix
             ./nixos/hardware-configuration.nix
             ./nixos/home.nix
+            ./modules/desktop/xorg.nix
+            ./modules/desktop/i3.nix
             ./modules/system/timezone.nix
             ./modules/system/doas.nix
+            ./modules/system/user.nix
             ./modules/gaming
             ./modules/services/keybase.nix
             ./modules/applications/firefox.nix

modules/applications/firefox.nix

@@ -1,5 +1,12 @@
 { pkgs, lib, user, gui, ... }:
 
 {
-  home-manager.users.${user}.home.packages = [ (lib.mkIf gui pkgs.firefox) ];
+  config = lib.mkIf gui {
+    home-manager.users.${user}.home.packages = [ pkgs.firefox ];
+
+    # Required for setting GTK theme (for preferred-color-scheme in browser)
+    services.dbus.packages = [ pkgs.dconf ];
+    programs.dconf.enable = true;
+  };
+
 }

modules/desktop/i3.nix

@@ -0,0 +1,5 @@
+{ ... }: {
+
+  services.xserver.windowManager = { i3 = { enable = true; }; };
+
+}

modules/desktop/xorg.nix

@@ -0,0 +1,53 @@
+{ pkgs, ... }: {
+
+  # Enable the X11 windowing system.
+  services.xserver = {
+    enable = true;
+
+    # Enable touchpad support
+    libinput.enable = true;
+
+    # Disable mouse acceleration
+    libinput.mouse.accelProfile = "flat";
+    libinput.mouse.accelSpeed = "1.15";
+
+    # Keyboard responsiveness
+    autoRepeatDelay = 250;
+    autoRepeatInterval = 40;
+
+    # Configure keymap in X11
+    layout = "us";
+    xkbOptions = "eurosign:e,caps:swapescape";
+
+    # Login screen
+    displayManager = {
+      lightdm = {
+        enable = true;
+
+        # Make the login screen dark
+        greeters.gtk.theme.name = "Adwaita-dark";
+
+        # Put the login screen on the left monitor
+        greeters.gtk.extraConfig = ''
+          active-monitor=0
+        '';
+      };
+      setupCommands = ''
+        ${pkgs.xorg.xrandr}/bin/xrandr --output DisplayPort-0 \
+                                            --mode 1920x1200 \
+                                            --pos 1920x0 \
+                                            --rotate left \
+                                        --output HDMI-0 \
+                                            --primary \
+                                            --mode 1920x1080 \
+                                            --pos 0x559 \
+                                            --rotate normal \
+                                        --output DVI-0 --off \
+                                        --output DVI-1 --off \
+      '';
+    };
+
+  };
+
+}
+

modules/editor/neovim.nix

@@ -16,4 +16,7 @@
 
   };
 
+  # Used for icons in Vim
+  fonts.fonts = with pkgs; [ nerdfonts ];
+
 }

modules/shell/fish.nix

@@ -1,5 +1,7 @@
 { pkgs, user, ... }: {
 
+  users.users.${user}.shell = pkgs.fish;
+
   home-manager.users.${user} = {
     programs.fish = {
       enable = true;

modules/system/user.nix

@@ -0,0 +1,20 @@
+{ user, ... }: {
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.${user} = {
+
+    # Create a home directory for human user
+    isNormalUser = true;
+
+    # Automatically create a password to start
+    initialPassword = "changeme";
+
+    # Enable sudo privileges
+    extraGroups = [
+      "wheel" # Sudo privileges
+      "i2c" # Access to external monitors
+    ];
+
+  };
+
+}

nixos/configuration.nix

@@ -2,7 +2,7 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, user, ... }:
+{ config, pkgs, user, font, ... }:
 
 {
   nixpkgs.config.allowUnfree = true;
@@ -22,61 +22,6 @@
   networking.interfaces.enp0s31f6.useDHCP = true;
   networking.interfaces.wlp3s0.useDHCP = true;
 
-  # Enable the X11 windowing system.
-  services.xserver = {
-    enable = true;
-
-    windowManager = { i3 = { enable = true; }; };
-
-    # Enable touchpad support
-    libinput.enable = true;
-
-    # Disable mouse acceleration
-    libinput.mouse.accelProfile = "flat";
-    libinput.mouse.accelSpeed = "1.15";
-
-    # Keyboard responsiveness
-    autoRepeatDelay = 250;
-    autoRepeatInterval = 40;
-
-    # Configure keymap in X11
-    layout = "us";
-    xkbOptions = "eurosign:e,caps:swapescape";
-
-    # Login screen
-    displayManager = {
-      lightdm = {
-        enable = true;
-
-        # Make the login screen dark
-        greeters.gtk.theme.name = "Adwaita-dark";
-
-        # Put the login screen on the left monitor
-        greeters.gtk.extraConfig = ''
-          active-monitor=0
-        '';
-      };
-      setupCommands = ''
-        ${pkgs.xorg.xrandr}/bin/xrandr --output DisplayPort-0 \
-                                            --mode 1920x1200 \
-                                            --pos 1920x0 \
-                                            --rotate left \
-                                        --output HDMI-0 \
-                                            --primary \
-                                            --mode 1920x1080 \
-                                            --pos 0x559 \
-                                            --rotate normal \
-                                        --output DVI-0 --off \
-                                        --output DVI-1 --off \
-      '';
-    };
-
-  };
-
-  # Required for setting GTK theme (for preferred-color-scheme in browser)
-  services.dbus.packages = with pkgs; [ dconf ];
-  programs.dconf.enable = true;
-
   # Mouse config
   services.ratbagd.enable = true;
 
@@ -86,31 +31,11 @@
 
   # Install fonts
   fonts.fonts = with pkgs; [
-    victor-mono # Used for Vim and Terminal
-    nerdfonts # Used for icons in Vim
+    font.package # Used for Vim and Terminal
     font-awesome # Icons for i3
     # siji # More icons for Polybar
   ];
-  fonts.fontconfig.defaultFonts.monospace = [ "Victor Mono" ];
-
-  # Define a user account. Don't forget to set a password with ‘passwd’.
-  users.users.${user} = {
-
-    # Create a home directory for human user
-    isNormalUser = true;
-
-    # Automatically create a password to start
-    initialPassword = "changeme";
-
-    # Enable sudo privileges
-    extraGroups = [
-      "wheel" # Sudo privileges
-      "i2c" # Access to external monitors
-    ];
-
-    # Use the fish shell
-    shell = pkgs.fish;
-  };
+  fonts.fontconfig.defaultFonts.monospace = [ font.name ];
 
   # List packages installed in system profile. To search, run:
   # $ nix search wget

nixos/hardware-configuration.nix

@@ -4,27 +4,27 @@
 { config, lib, pkgs, modulesPath, ... }:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
 
-  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" ];
+  boot.initrd.availableKernelModules =
+    [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/f0313f58-971a-46e3-9191-909fe5eb7f7e";
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/f0313f58-971a-46e3-9191-909fe5eb7f7e";
     fsType = "ext4";
   };
 
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/FB26-799C";
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/FB26-799C";
     fsType = "vfat";
   };
 
   swapDevices = [ ];
 
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
-  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  hardware.cpu.intel.updateMicrocode =
+    lib.mkDefault config.hardware.enableRedistributableFirmware;
 }