Move most settings from core profile to x-os module

flake.nix

@@ -120,7 +120,7 @@
             suites = with profiles; rec {
               base = [ core users.pub-solar users.root ];
               iso = base ++ [ base-user graphical pub-solar-iso ];
-              pubsolaros = [ core full-install base-user users.root ];
+              pubsolaros = [ core dram full-install base-user users.root ];
               anonymous = [ pubsolaros users.pub-solar ];
             };
           };
@@ -145,6 +145,5 @@
         homeConfigurations = digga.lib.mkHomeConfigurations self.nixosConfigurations;
 
         deploy.nodes = digga.lib.mkDeployNodes self.nixosConfigurations { };
-      }
-  ;
+      };
 }

modules/x-os/boot.nix

@@ -28,5 +28,11 @@ in
     };
 
     boot.loader.systemd-boot.enable = true;
+
+    # Use latest LTS linux kernel by default
+    boot.kernelPackages = pkgs.linuxPackages_5_15;
+
+    # Support ntfs drives
+    boot.supportedFilesystems = [ "ntfs" ];
   };
 }

modules/x-os/default.nix

@@ -1,7 +1,10 @@
 { ... }: {
   imports = [
     ./boot.nix
+    ./fonts.nix
     ./i18n.nix
     ./networking.nix
+    ./nix.nix
+    ./services.nix
   ];
 }

modules/x-os/fonts.nix

@@ -0,0 +1,12 @@
+{ config, pkgs, lib, ... }:
+
+{
+  fonts = {
+    fonts = with pkgs; [ powerline-fonts dejavu_fonts ];
+    fontconfig.defaultFonts = {
+      monospace = [ "DejaVu Sans Mono for Powerline" ];
+      sansSerif = [ "DejaVu Sans" ];
+    };
+  };
+}
+

modules/x-os/nix.nix

@@ -0,0 +1,25 @@
+{ config, pkgs, lib, inputs, ... }:
+
+{
+  nix = {
+    # Improve nix store disk usage
+    autoOptimiseStore = true;
+    gc.automatic = true;
+    optimise.automatic = true;
+    # Prevents impurities in builds
+    useSandbox = true;
+    # give root and @wheel special privileges with nix
+    trustedUsers = [ "root" "@wheel" ];
+    # This is just a representation of the nix default
+    systemFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
+    # Generally useful nix option defaults
+    extraOptions = ''
+      min-free = 536870912
+      keep-outputs = true
+      keep-derivations = true
+      fallback = true
+      # used by nix-dram
+      default-flake = flake:nixpkgs
+    '';
+  };
+}

modules/x-os/services.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, lib, ... }:
+
+{
+
+  # For rage encryption, all hosts need a ssh key pair
+  services.openssh = {
+    enable = true;
+    openFirewall = lib.mkDefault false;
+  };
+
+  # Service that makes Out of Memory Killer more effective
+  services.earlyoom.enable = true;
+}

profiles/core/default.nix

@@ -11,11 +11,7 @@ in
     pub-solar.crypto.enable = true;
     pub-solar.devops.enable = true;
 
-    # This is just a representation of the nix default
-    nix.systemFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
-
     environment = {
-
       systemPackages = with pkgs; [
         # Core unix utility packages
         coreutils-full
@@ -75,57 +71,5 @@ in
         neofetch
       ];
     };
-
-    fonts = {
-      fonts = with pkgs; [ powerline-fonts dejavu_fonts ];
-
-      fontconfig.defaultFonts = {
-
-        monospace = [ "DejaVu Sans Mono for Powerline" ];
-
-        sansSerif = [ "DejaVu Sans" ];
-
-      };
-    };
-
-    nix = {
-      # use nix-dram, a patched nix command, see: https://github.com/dramforever/nix-dram
-      package = inputs.nix-dram.packages.${pkgs.system}.nix-dram;
-
-      # Improve nix store disk usage
-      autoOptimiseStore = true;
-      gc.automatic = true;
-      optimise.automatic = true;
-
-      # Prevents impurities in builds
-      useSandbox = true;
-
-      # give root and @wheel special privileges with nix
-      trustedUsers = [ "root" "@wheel" ];
-
-      # Generally useful nix option defaults
-      extraOptions = ''
-        min-free = 536870912
-        keep-outputs = true
-        keep-derivations = true
-        fallback = true
-        # used by nix-dram
-        default-flake = flake:nixpkgs
-      '';
-    };
-
-    # For rage encryption, all hosts need a ssh key pair
-    services.openssh = {
-      enable = true;
-      openFirewall = lib.mkDefault false;
-    };
-
-    # Service that makes Out of Memory Killer more effective
-    services.earlyoom.enable = true;
-
-    # Use latest LTS linux kernel by default
-    boot.kernelPackages = pkgs.linuxPackages_5_15;
-
-    boot.supportedFilesystems = [ "ntfs" ];
   };
 }

profiles/dram/default.nix

@@ -0,0 +1,5 @@
+{ self, config, lib, pkgs, inputs, ... }:
+
+{
+  nix.package = inputs.nix-dram.packages.${pkgs.system}.nix-dram;
+}