Add codex 0.92.0 PR patch and fix deprecation warnings

- Add nixpkgs PR 483705 to bump codex from 0.89.0 to 0.92.0
- Disable overlay version overrides in favor of PR patches
- Replace deprecated pkgs.system with pkgs.stdenv.hostPlatform.system
- Replace deprecated xfce.thunar with thunar

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

nixos/code.nix

@@ -78,7 +78,7 @@ makeEnable config "myModules.code" true {
     nixd
     nil
     alejandra
-  ] ++ (if pkgs.system == "x86_64-linux" then with pkgs; [
+  ] ++ (if pkgs.stdenv.hostPlatform.system == "x86_64-linux" then with pkgs; [
     # purescript
     purescript
     # Broken

nixos/desktop.nix

@@ -87,7 +87,7 @@ makeEnable config "myModules.desktop" true {
     # TODO: reenable
     # transmission_3-gtk
     vlc
-    xfce.thunar
+    thunar
 
     # Audio
     picard
@@ -102,7 +102,7 @@ makeEnable config "myModules.desktop" true {
     # Visualization
     graphviz
     nodePackages.mermaid-cli
-  ] ++ (if pkgs.system == "x86_64-linux" then with pkgs; [
+  ] ++ (if pkgs.stdenv.hostPlatform.system == "x86_64-linux" then with pkgs; [
     google-chrome
     pommed_light
     slack

nixos/electron.nix

@@ -8,7 +8,7 @@ makeEnable config "myModules.electron" false {
     # keybase-gui
     zoom-us
   ];
-  home-manager.users = forEachUser (if pkgs.system == "x86_64-linux" then {
+  home-manager.users = forEachUser (if pkgs.stdenv.hostPlatform.system == "x86_64-linux" then {
     # systemd.user.services.bitwarden = {
     #   Unit = {
     #     Description = "Bitwarden";

nixos/flake.nix

@@ -153,6 +153,10 @@
         pr = 434160; # git-sync-rs package
         hash = "sha256-0j0IcyHd7rE+MXc0SHu8UixW7Jbtzu1NnzSjEVeZmTA=";
       }
+      {
+        pr = 483705; # codex: 0.89.0 -> 0.92.0
+        hash = "sha256-tkZP0ATAAuBNnJGo+xjXJD0byXAgeKoB+U3ZUaoCTHM=";
+      }
       # claude-code
       # {
       #   pr = 464698;

nixos/gitea-runner.nix

@@ -40,7 +40,7 @@ makeEnable config "myModules.gitea-runner" false {
       url = "https://dev.railbird.ai";
       tokenFile = config.age.secrets.gitea-runner-token.path;
       labels = [
-        "nixos-${pkgs.system}:host"
+        "nixos-${pkgs.stdenv.hostPlatform.system}:host"
         "nix:docker://localhost:5921/nix-runner"
       ];
     };

nixos/hyprland.nix

@@ -3,7 +3,7 @@ makeEnable config "myModules.hyprland" true {
   programs.hyprland = {
     enable = true;
     # Use Hyprland from the flake for proper plugin compatibility
-    package = inputs.hyprland.packages.${pkgs.system}.hyprland;
+    package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
   };
 
   # Hyprland-specific packages
@@ -21,7 +21,7 @@ makeEnable config "myModules.hyprland" true {
     wlsunset       # Night light / blue light filter
 
     # hy3 plugin from flake (properly built against matching Hyprland)
-    inputs.hy3.packages.${pkgs.system}.hy3
+    inputs.hy3.packages.${pkgs.stdenv.hostPlatform.system}.hy3
 
     # For scripts
     jq

nixos/overlay.nix

@@ -1,8 +1,8 @@
 final: prev:
 let
   # Enable/disable version overrides (set to false to use nixpkgs versions)
-  enableCodexOverride = true;
-  enableClaudeCodeOverride = true;
+  enableCodexOverride = false; # Using PR patches instead
+  enableClaudeCodeOverride = false; # Disabled - needs proper buildNpmPackage override
 
   # Codex version override - update these values to bump the version
   codexVersion = {
@@ -13,7 +13,7 @@ let
   claudeCodeVersion = {
     version = "2.1.22";
     hash = "sha256-OqvLiwB5TwZaxDvyN/+/+eueBdWNaYxd81cd5AZK/mA=";
-    npmDepsHash = "";
+    npmDepsHash = "sha256-vy7osk3UAOEgsJx9jdcGe2wICOk5Urzxh1WLAHyHM+U=";
   };
 in
 {

nixos/secrets.nix

@@ -3,7 +3,7 @@
     imports = [ inputs.agenix.homeManagerModules.default ];
     age.identityPaths = [ "${config.home.homeDirectory}/.ssh/id_ed25519" ];
     home.packages = [
-      inputs.agenix.packages."${pkgs.system}".default
+      inputs.agenix.packages."${pkgs.stdenv.hostPlatform.system}".default
     ];
     age.secrets.gpg-keys.file = ./secrets/gpg-keys.age;
     age.secrets.gpg-passphrase.file = ./secrets/gpg-passphrase.age;

nixos/xmonad.nix

@@ -31,7 +31,7 @@ makeEnable config "myModules.xmonad" true  {
     # haskellPackages.gtk-sni-tray
     haskellPackages.status-notifier-item
     haskellPackages.dbus-hslogger
-    inputs.imalison-taffybar.defaultPackage."${pkgs.system}"
+    inputs.imalison-taffybar.defaultPackage."${pkgs.stdenv.hostPlatform.system}"
   ];
 
   home-manager.users = forEachUser {
@@ -43,7 +43,7 @@ makeEnable config "myModules.xmonad" true  {
 
     services.taffybar = {
       enable = true;
-      package = inputs.imalison-taffybar.defaultPackage."${pkgs.system}";
+      package = inputs.imalison-taffybar.defaultPackage."${pkgs.stdenv.hostPlatform.system}";
     };
 
     services.kdeconnect = {