Fix deprecated NixOS options to resolve flake check warnings

- Update system attribute to stdenv.hostPlatform.system in overlays
- Migrate git config to new settings structure (user.name, user.email)
- Move ssh.addKeysToAgent to matchBlocks configuration
- Disable ssh default config to prevent future deprecation warnings

flake.nix

@@ -53,7 +53,7 @@
         nixpkgs.overlays = [
           (final: prev: {
             unstable = import nixpkgs-unstable {
-              system = prev.system;
+              system = prev.stdenv.hostPlatform.system;
               config.allowUnfree = true;
             };
             custom = prev.callPackage ./packages {};
@@ -81,7 +81,7 @@
         nixpkgs.overlays = [
           (final: prev: {
             unstable = import nixpkgs-unstable {
-              system = prev.system;
+              system = prev.stdenv.hostPlatform.system;
               config.allowUnfree = true;
             };
             custom = prev.callPackage ./packages {};
@@ -107,7 +107,7 @@
         nixpkgs.overlays = [
           (final: prev: {
             unstable = import nixpkgs-unstable {
-              system = prev.system;
+              system = prev.stdenv.hostPlatform.system;
               config.allowUnfree = true;
               overlays = [
                 # Override claude-code in unstable to use our custom GCS-based build

home/roles/base/default.nix

@@ -52,9 +52,9 @@ in
 
     programs.git = {
       enable = true;
-      userName = "John Ogle";
-      userEmail = "john@ogle.fyi";
-      extraConfig = {
+      settings = {
+        user.name = "John Ogle";
+        user.email = "john@ogle.fyi";
         safe.directory = "/etc/nixos";
       };
     };
@@ -69,8 +69,11 @@ in
 
     programs.ssh = {
       enable = true;
-      addKeysToAgent = "yes";
+      enableDefaultConfig = false;
       matchBlocks = {
+        "*" = {
+          addKeysToAgent = "yes";
+        };
         "nucdeb1" = {
           hostname = "nucdeb1.oglehome";
           user = "root";

roles/kodi/default.nix

@@ -32,7 +32,7 @@ in
   config = let
     kodiBasePkg = if cfg.wayland then pkgs.kodi-wayland else pkgs.kodi;
     kodiPkg = kodiBasePkg.withPackages (pkgs: with pkgs; [
-      jellyfin-media-player
+      jellyfin
       steam-launcher
       steam-library
       youtube
@@ -50,11 +50,18 @@ in
       };
 
       environment.systemPackages = with pkgs; [
+	jellyfin-media-player
         kodiPkg
         wget
         firefox
       ] ++ optional cfg.appLauncherServer.enable pkgs.custom.app-launcher-server;
 
+      nixpkgs.config.permittedInsecurePackages = lib.warn
+        "Allowing insecure package qtwebengine-5.15.19 as a jellyfin-media-player dependency. Remove this once jellyfin is updated to use qt6"
+        [
+          "qtwebengine-5.15.19"
+        ];
+
       programs.kdeconnect.enable = true;
 
       systemd.user.services = mkIf cfg.appLauncherServer.enable {