feat: move nixos-specific modules to their own module that is dynamically imported

modules/core/nixos.nix

@@ -0,0 +1,25 @@
+{
+  self,
+  pkgs,
+  lib,
+  inputs,
+  ...
+}:
+{
+  nix = {
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 7d";
+    };
+  };
+
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [ ];
+  };
+
+  services.envfs.enable = true;
+
+  system.stateVersion = "24.05";
+}

modules/core/system.nix

@@ -3,35 +3,30 @@
   pkgs,
   lib,
   inputs,
+  system,
   ...
 }:
 {
+  imports =
+    (lib.optionals (system == "x64_64-linux") [ (import ./i18n.nix) ])
+    ++ (lib.optionals (system == "aarch64-linux") [ (import ./i18n.nix) ])
+    ++ (lib.optionals (system == "x64_64-linux") [ (import ./nixos.nix) ])
+    ++ (lib.optionals (system == "aarch64-linux") [ (import ./nixos.nix) ]);
+
   nix = {
     settings = {
-      download-buffer-size = 67108864; # Set buffer size to 64MB for large downloads
-      allowed-users = [ "@wheel" ];
-      auto-optimise-store = true;
       experimental-features = [
         "nix-command"
         "flakes"
       ];
+      download-buffer-size = 67108864; # Set buffer size to 64MB for large downloads
+      allowed-users = [ "@wheel" ];
       # substituters = [ "http://violet.booping.local" ];
       # trusted-public-keys = [ "violet.booping.local:2gshN3xfGSL7eKFc8tGkqSoIb3WQxuB2RJ8DuakLLqc=%" ];
     };
-    gc = {
-      automatic = true;
-      dates = "weekly";
-      options = "--delete-older-than 7d";
-    };
+    optimise.automatic = true;
   };
 
-  programs.nix-ld = {
-    enable = true;
-    libraries = with pkgs; [ ];
-  };
-
-  services.envfs.enable = true;
-
   nixpkgs = {
     overlays = [
       self.overlays.default
@@ -42,9 +37,9 @@
   nixpkgs.config = {
     allowUnfree = true;
     permittedInsecurePackages = [
-      "jitsi-meet-1.0.8043"
-      "olm-3.2.16"
-      "libsoup-2.74.3"
+      # "jitsi-meet-1.0.8043"
+      # "olm-3.2.16"
+      # "libsoup-2.74.3"
     ];
     overlays = [
       self.overlays.default
@@ -53,8 +48,6 @@
     ];
   };
 
-  # powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
-
   # Font packages
   environment.systemPackages = with pkgs; [
     noto-fonts-cjk-sans
@@ -62,14 +55,8 @@
     ipaexfont
   ];
 
-  i18n.defaultLocale = "en_US.UTF-8";
-  i18n.supportedLocales = [
-    "en_US.UTF-8/UTF-8"
-    "ja_JP.UTF-8/UTF-8"
-  ];
   time.timeZone = lib.mkDefault "Europe/Amsterdam";
   environment.variables = {
     LC_TIME = "C.UTF-8";
   };
-  system.stateVersion = "24.05";
 }