Extract lots of host config to common config

hosts/common.nix

@@ -15,12 +15,41 @@ in {
     keyMap = "us";
   };
 
+  networking = {
+    useDHCP = false;
+    nameservers = [
+      "1.1.1.1"
+      "8.8.8.8"
+    ];
+  };
+
   nix = {
     package = pkgs.nixFlakes;
     extraOptions = ''
       experimental-features = nix-command flakes
-	    builders-use-substitutes = true
+      builders-use-substitutes = true
     '';
+
+    distributedBuilds = config.networking.hostname != "Tsuki";
+    binaryCaches = [
+      "https://cache.nixos.org/"
+    ];
+
+    buildMachines = [
+      {
+        hostName = "Tsuki";
+        system = "x86_64-linux";
+        maxJobs = 1;
+        speedFactor = 3;
+        supportedFeatures = [
+          "nixos-test"
+          "benchmark"
+          "big-paralell"
+          "kvm"
+        ];
+        mandatoryFeatures = [];
+      }
+    ];
   };
 
   environment = {
@@ -29,6 +58,12 @@ in {
       VISUAL = "nvim";
     };
 
+    systemPackages = with pkgs; [
+      wget
+    ] + lib.optionals (!machineVars.headless) [
+      haskellPackages.xmobar
+    ];
+
     shells = with pkgs; [
       bashInteractive
       zsh
@@ -104,6 +139,16 @@ in {
   users.users.h7x4 = {
     isNormalUser = true;
     shell = pkgs.zsh;
+    extraGroups = [
+      "wheel"
+      "networkmanager"
+      "docker"
+      "audio"
+      "video"
+      "disk"
+      "libvirtd"
+      "input"
+    ];
   };
 
   home-manager = {
@@ -117,10 +162,106 @@ in {
     };
   };
 
+  services = {
+    tumbler.enable = !machineVars.headless;
+    gnome.gnome-keyring.enable = !machineVars.headless;
+
+    openssh = {
+      # enable = true;
+      passwordAuthentication = false;
+      kbdInteractiveAuthentication = false;
+      permitRootLogin = "no";
+    };
+
+    dbus = {
+      enable = !machineVars.headless;
+      packages = with pkgs; [
+        gcr
+        dconf
+      ];
+    };
+
+    xserver = {
+      enable = !machineVars.headless;
+      layout = "us";
+      xkbOptions = "caps:escape";
+
+      libinput = {
+        enable = true;
+        touchpad.disableWhileTyping = true;
+      };
+
+      desktopManager = {
+        xterm.enable = false;
+        xfce.enable = true;
+      };
+
+      windowManager.xmonad = {
+        enable = true;
+        enableContribAndExtras = true;
+      };
+
+      # displayManager.startx.enable = true;
+      # displayManager.gdm.enable = true;
+      displayManager.lightdm.enable = true;
+      displayManager.defaultSession = "none+xmonad";
+    };
+
+  };
+
+  programs = {
+    dconf.enable = !machineVars.headless;
+    git.enable = true;
+    light.enable = !machineVars.headless;
+    npm.enable = true;
+    tmux.enable = true;
+
+    gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+    };
+
+    neovim = {
+      enable = true;
+      defaultEditor = true;
+      viAlias = true;
+      vimAlias = true;
+      configure = {
+        packages.myVimPackage = with pkgs.vimPlugins; {
+          start = [
+            direnv-vim
+            vim-nix
+            vim-polyglot
+          ];
+
+          opt = [
+            vim-monokai
+          ];
+        };
+
+        customRC = ''
+          set number relativenumber
+          set undofile
+          set undodir=~/.cache/vim/undodir
+
+          packadd! vim-monokai
+          colorscheme monokai
+        '';
+      };
+    };
+  };
+
+  sound = {
+    enable = !machineVars.headless;
+    mediaKeys.enable = true;
+  };
+
+  hardware.pulseaudio.enable = !machineVars.headless;
+
   security.sudo.extraConfig = ''
     Defaults    lecture = always
     Defaults    lecture_file = /etc/${config.environment.etc.sudoLecture.target}
   '';
- 
+
-  system.stateVersion = "21.11";
+  system.stateVersion = "22.05";
 }

hosts/eisei/configuration.nix

@@ -28,7 +28,6 @@ in {
   networking = {
     hostName = "Eisei";
     networkmanager.enable = true;
-    useDHCP = false;
 
     interfaces = {
       eno1.useDHCP = true;
@@ -59,128 +58,20 @@ in {
 
   services = {
     openssh.enable = true;
-    gnome.gnome-keyring.enable = true;
     printing.enable = true;
-    dbus = {
-      enable = true;
-      packages = with pkgs; [
-        gcr
-        gnome3.dconf
-      ];
-    };
     cron = {
       enable = true;
       systemCronJobs = [
     #     "*/5 * * * *      root    date >> /tmp/cron.log"
       ];
     };
-
-    xserver = {
-      enable = true;
-      layout = "us";
-      xkbOptions = "caps:escape";
-
-      libinput = {
-        enable = true;
-        touchpad.disableWhileTyping = true;
-      };
-
-      windowManager.xmonad = {
-        enable = true;
-        enableContribAndExtras = true;
-      };
-    };
   };
 
-  sound.enable = true;
-  hardware.pulseaudio.enable = true;
-
   hardware.bluetooth.enable = true;
 
-  nix = {
-    distributedBuilds = true;
-    binaryCaches = [
-      "https://cache.nixos.org/"
-    ];
-
-    buildMachines = [
-      {
-        hostName = "Tsuki";
-        system = "x86_64-linux";
-        maxJobs = 1;
-        speedFactor = 3;
-        supportedFeatures = [
-          "nixos-test"
-          "benchmark"
-          "big-paralell"
-          "kvm"
-        ];
-        mandatoryFeatures = [];
-      }
-    ];
-
-  };
-
-  users.users.h7x4.extraGroups = [
-    "wheel"
-    "networkmanager"
-    "docker"
-    "disk"
-    "audio"
-    "video"
-    "libvirtd"
-    "input"
-  ];
-
-  environment.systemPackages = with pkgs; [
-    wget
-    haskellPackages.xmobar
-  ];
-
-  programs = {
-    dconf.enable = true;
-    git.enable = true;
-    light.enable = true;
-    npm.enable = true;
-    tmux.enable = true;
-    neovim = {
-      enable = true;
-      defaultEditor = true;
-      viAlias = true;
-      vimAlias = true;
-      configure = {
-        packages.myVimPackage = with pkgs.vimPlugins; {
-          start = [
-            direnv-vim
-            vim-nix
-            vim-polyglot
-          ];
-
-          opt = [
-            vim-monokai
-          ];
-        };
-
-        customRC = ''
-          set number relativenumber
-          set undofile
-          set undodir=~/.cache/vim/undodir
-
-          packadd! vim-monokai
-          colorscheme monokai
-        '';
-      };
-    };
-
-    gnupg.agent = {
-      enable = true;
-      enableSSHSupport = true;
-    };
-  };
-
   virtualisation = {
     docker.enable = true;
-    libvirtd.enable = true;
+    # libvirtd.enable = true;
   };
 }
 

hosts/kasei/configuration.nix

@@ -29,14 +29,9 @@
   networking = {
     hostName = "kasei";
     networkmanager.enable = true;
-    useDHCP = false;
     interfaces.wlp5s0.useDHCP = true; 
     interfaces.wlp2s0f0u4.useDHCP = true; 
-    nameservers = [
+    firewall.enable = true;
-      "1.1.1.1"
-      "8.8.8.8"
-    ];
-    firewall.enable=true;
   };
 
   i18n = {
@@ -54,44 +49,10 @@
     # };
   };
 
-  users.users.h7x4.extraGroups = [
-    "wheel"
-    "networkmanager"
-    "docker"
-    "audio"
-    "video"
-    "disk"
-    "libvirtd"
-    "input"
-  ];
-
-  environment = {
-    shellAliases = {
-      fixscreen = "xrandr --output DP-4 --mode 1920x1080 --pos 0x0 -r 144 --output DVI-D-1 --primary --mode 1920x1080 --pos 1920x0 -r 60";
-    };
-
-    systemPackages = with pkgs; [
-      wget
-      haskellPackages.xmobar
-    ];
-  };
 
   services = {
-    openssh = {
+    openssh.enable = true;
-      enable = true;
-      passwordAuthentication = false;
-      challengeResponseAuthentication = false;
-      permitRootLogin = "no";
-    };
-    gnome.gnome-keyring.enable = true;
     printing.enable = true;
-    dbus = {
-      enable = true;
-      packages = with pkgs; [
-        gcr
-        gnome3.dconf
-      ];
-    };
     cron = {
       enable = true;
       systemCronJobs = [
@@ -99,66 +60,8 @@
       ];
     };
 
-    xserver = {
-      enable = true;
-      layout = "us";
-      xkbOptions = "caps:escape";
-
-      displayManager.lightdm.enable = true;
-
-      libinput = {
-        enable = true;
-        touchpad.disableWhileTyping = true;
-      };
-
-      windowManager.xmonad = {
-        enable = true;
-        enableContribAndExtras = true;
-      };
-    };
-  };
-
-  sound.enable = true;
-  hardware.pulseaudio.enable = true;
-
   hardware.bluetooth.enable = true;
 
-  programs = {
-    dconf.enable = true;
-    git.enable = true;
-    light.enable = true;
-    npm.enable = true;
-    tmux.enable = true;
-    neovim = {
-      enable = true;
-      defaultEditor = true;
-      viAlias = true;
-      vimAlias = true;
-      configure = {
-        packages.myVimPackage = with pkgs.vimPlugins; {
-          start = [
-            direnv-vim
-            vim-nix
-            vim-polyglot
-          ];
-
-          opt = [
-            vim-monokai
-          ];
-        };
-
-        customRC = ''
-          set number relativenumber
-          set undofile
-          set undodir=~/.cache/vim/undodir
-
-          packadd! vim-monokai
-          colorscheme monokai
-        '';
-      };
-    };
-  };
-
   virtualisation = {
     docker.enable = true;
     libvirtd.enable = true;

hosts/tsuki/configuration.nix

@@ -49,22 +49,12 @@
   networking = {
     hostName = "Tsuki";
     networkmanager.enable = true;
-    useDHCP = false;
     interfaces.ens18.useDHCP = true;
-    nameservers = [
-      "1.1.1.1"
-      "8.8.8.8"
-    ];
     firewall.enable=true;
   };
 
   services = {
-    openssh = {
+    openssh.enable = true;
-      enable = true;
-      passwordAuthentication = false;
-      challengeResponseAuthentication = false;
-      permitRootLogin = "no";
-    };
     printing.enable = true;
     cron = {
       enable = true;
@@ -77,58 +67,12 @@
   users.groups.media = {};
 
   users.users = {
-    h7x4.extraGroups = [
-      "wheel"
-      "networkmanager"
-      "docker"
-      "disk"
-      "libvirtd"
-      "input"
-    ];
     media = {
       isSystemUser = true;
       group = "media";
     };
   };
 
-  environment.systemPackages = with pkgs; [
-    wget
-  ];
-
-  programs = {
-    git.enable = true;
-    npm.enable = true;
-    tmux.enable = true;
-    neovim = {
-      enable = true;
-      defaultEditor = true;
-      viAlias = true;
-      vimAlias = true;
-      configure = {
-        packages.myVimPackage = with pkgs.vimPlugins; {
-          start = [
-            direnv-vim
-            vim-nix
-            vim-polyglot
-          ];
-
-          opt = [
-            vim-monokai
-          ];
-        };
-
-        customRC = ''
-          set number relativenumber
-          set undofile
-          set undodir=~/.cache/vim/undodir 
-
-          packadd! vim-monokai 
-          colorscheme monokai
-        '';
-      };
-    };
-  };
-
   virtualisation = {
     docker.enable = true;
     libvirtd.enable = true;