diff --git a/nixos/arion-openclaw/arion-compose.nix b/nixos/arion-openclaw/arion-compose.nix
index 8a21a42..b8c72ad 100644
--- a/nixos/arion-openclaw/arion-compose.nix
+++ b/nixos/arion-openclaw/arion-compose.nix
@@ -35,6 +35,9 @@
               sed -i "s|OPENCLAW_HOME=.*|OPENCLAW_HOME=/root/.openclaw|" .env
               sed -i "s|PORT=.*|PORT=4310|" .env
             fi
+            sed -i 's/resolveUiLanguage(url.searchParams, "zh")/resolveUiLanguage(url.searchParams, "en")/g' src/ui/server.ts
+            sed -i 's/hasExplicitLanguage ? resolvedLanguage : "zh"/hasExplicitLanguage ? resolvedLanguage : "en"/g' src/ui/server.ts
+            sed -i 's/language: "zh",/language: "en",/g' src/runtime/ui-preferences.ts
             npm install
             npm run build
             exec npm run dev:ui
diff --git a/nixos/nginx.nix b/nixos/nginx.nix
index 7913e07..5ae4eb6 100644
--- a/nixos/nginx.nix
+++ b/nixos/nginx.nix
@@ -56,6 +56,7 @@
         enableACME = true;
         forceSSL = false;
         addSSL = true;
+        basicAuthFile = "/var/openclaw/htpasswd";
 
         locations."/" = {
           proxyPass = "http://127.0.0.1:4310/";