refactor config with better structure

nixos/default.nix

@@ -1,61 +1,34 @@
-{ pkgs, ... }:
+{ ... }:
 
 {
   imports = [
     ./hardware-configuration.nix
-    ./graphics
-    ./audio.nix
-    ./fonts/fonts.nix
-    ./dm/sddm.nix
-    ./wm/niri.nix
-    ./inputs/wooting.nix
-    ./network/bluetooth.nix
-    ./network/usb.nix
-    ./steam/steam.nix
+
+    # System
+    ./system/boot.nix
+    ./system/nix.nix
+    ./system/networking.nix
+    ./system/locale.nix
+    ./system/users.nix
+
+    # Hardware
+    ./hardware/graphics.nix
+    ./hardware/nvidia.nix
+    ./hardware/audio.nix
+    ./hardware/bluetooth.nix
+    ./hardware/storage.nix
+    ./hardware/wooting.nix
+
+    # Desktop
+    ./desktop/fonts.nix
+    ./desktop/sddm.nix
+    ./desktop/niri.nix
+
+    # Programs
+    ./programs/gaming.nix
     ./programs/obs.nix
   ];
 
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-
-  networking.hostName = "prouk";
-  networking.networkmanager.enable = true;
-
-  time.timeZone = "Europe/Paris";
-
-  users.users.prouk = {
-    isNormalUser = true;
-    extraGroups = [ "wheel" ];
-  };
-
-  programs.firefox.enable = true;
-  programs.nix-ld.enable = true;
-
-  nixpkgs.config.allowUnfree = true;
-  nixpkgs.config.permittedInsecurePackages = [
-    "electron-40.10.5"
-  ];
-
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
   # NO TOUCHY
   system.stateVersion = "26.05";
-
-  boot.kernelPackages = pkgs.linuxPackages_latest;
-
-  nix.settings = {
-    trusted-users = [ "prouk" ];
-
-    substituters = [
-      "https://cache.nixos.org"
-      "https://nix-community.cachix.org"
-    ];
-    trusted-public-keys = [
-      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-    ];
-  };
 }