diff --git a/apps/harness/Dockerfile b/apps/harness/Dockerfile
index 8e76ac0..931d20d 100644
--- a/apps/harness/Dockerfile
+++ b/apps/harness/Dockerfile
@@ -25,6 +25,11 @@ COPY --from=deps /app ./
 COPY packages/db ./packages/db
 COPY apps/harness ./apps/harness
 RUN pnpm --filter @homelab/harness build
+# Extract standalone next config so the custom server can skip webpack loading
+RUN node -e "\
+  const s = require('fs').readFileSync('apps/harness/.next/standalone/apps/harness/server.js','utf8');\
+  const m = s.match(/const nextConfig = (\\{.+\\})\n/);\
+  require('fs').writeFileSync('apps/harness/.next/standalone/apps/harness/next-config.json', m[1]);"
 
 FROM base AS runner
 WORKDIR /app
diff --git a/apps/harness/server.js b/apps/harness/server.js
index 5c43248..ccf3015 100644
--- a/apps/harness/server.js
+++ b/apps/harness/server.js
@@ -1,13 +1,26 @@
 const { createServer } = require("http");
+const path = require("path");
 const { parse } = require("url");
-const next = require("next");
-const { attachPtyWebSocket } = require("./pty-server");
 
 const dev = process.env.NODE_ENV !== "production";
 const hostname = process.env.HOSTNAME || "0.0.0.0";
 const port = parseInt(process.env.PORT || "3100", 10);
 
-const app = next({ dev, hostname, port });
+// In production, load the standalone config to avoid webpack dependency
+if (!dev) {
+  try {
+    const configPath = path.join(__dirname, "next-config.json");
+    const nextConfig = JSON.parse(require("fs").readFileSync(configPath, "utf8"));
+    process.env.__NEXT_PRIVATE_STANDALONE_CONFIG = JSON.stringify(nextConfig);
+  } catch {
+    // Config not found (local dev) — next() will load config normally
+  }
+}
+
+const next = require("next");
+const { attachPtyWebSocket } = require("./pty-server");
+
+const app = next({ dev, hostname, port, dir: __dirname });
 const handle = app.getRequestHandler();
 
 app.prepare().then(() => {