diff --git a/package.json b/package.json
index bed1b9f..a71d557 100644
--- a/package.json
+++ b/package.json
@@ -4,9 +4,11 @@
   "version": "1.0.4",
   "type": "module",
   "scripts": {
-    "dev": "vite",
+    "dev": "pnpx tsx scripts/dev-all.ts",
+    "dev:frontend": "vite",
+    "dev:backend": "pnpx tsx backend/app.ts",
     "build": "vite build",
-    "build_backend": "tsup && ./llrt compile ./dist_backend/app.cjs ./dist_backend/app.lrt",
+    "build_backend": "pnpx tsx scripts/build-backend.ts",
     "docker_build": "docker build -t llej0/web-font:${npm_package_version} -t llej0/web-font:latest .",
     "docker_push": "docker push llej0/web-font:${npm_package_version} && docker push llej0/web-font:latest",
     "preview": "vite preview",
diff --git a/scripts/build-backend.ts b/scripts/build-backend.ts
new file mode 100644
index 0000000..2870f06
--- /dev/null
+++ b/scripts/build-backend.ts
@@ -0,0 +1,114 @@
+/**
+ * 构建后端脚本
+ * 1. 检测并下载 LLRT 二进制文件
+ * 2. 运行 tsup 编译
+ * 3. 使用 LLRT compile 生成 .lrt 文件
+ */
+import { execSync } from "node:child_process";
+import { existsSync } from "node:fs";
+import { mkdir, writeFile, rm } from "node:fs/promises";
+import { arch, platform } from "node:os";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const ROOT_DIR = join(__dirname, "..");
+const LLRT_BIN = join(ROOT_DIR, "llrt");
+
+/** 映射 node arch 到 LLRT arch */
+function getLlrtArch() {
+  const a = arch();
+  if (a === "x64") return "x64";
+  if (a === "arm64") return "arm64";
+  throw new Error(`Unsupported architecture: ${a}`);
+}
+
+/** 映射 node platform 到 LLRT platform */
+function getLlrtPlatform() {
+  const p = platform();
+  if (p === "linux") return "linux";
+  if (p === "darwin") return "darwin";
+  if (p === "win32") return "windows";
+  throw new Error(`Unsupported platform: ${p}`);
+}
+
+/** 确保 llrt 二进制文件存在，不存在则下载 */
+async function ensureLlrt() {
+  if (existsSync(LLRT_BIN)) {
+    console.log("LLRT binary found, skipping download.");
+    return;
+  }
+
+  const llrtArch = getLlrtArch();
+  const llrtPlatform = getLlrtPlatform();
+
+  console.log("Fetching latest LLRT release version...");
+  const res = await fetch("https://api.github.com/repos/awslabs/llrt/releases/latest");
+  /** 响应数据 */
+  const data = await res.json() as { tag_name: string };
+  const version = data.tag_name;
+
+  if (!version) {
+    throw new Error("Failed to fetch latest LLRT version from GitHub");
+  }
+
+  console.log(`Latest LLRT version: ${version}`);
+
+  const downloadUrl = `https://github.com/awslabs/llrt/releases/download/${version}/llrt-${llrtPlatform}-${llrtArch}.zip`;
+  console.log(`Downloading from ${downloadUrl} ...`);
+
+  const zipRes = await fetch(downloadUrl);
+  if (!zipRes.ok) {
+    throw new Error(`Failed to download LLRT: ${zipRes.status} ${zipRes.statusText}`);
+  }
+
+  /** 下载 zip 到临时文件 */
+  const tmpDir = join(ROOT_DIR, ".tmp-llrt");
+  await mkdir(tmpDir, { recursive: true });
+  const zipPath = join(tmpDir, "llrt.zip");
+  const arrayBuffer = await zipRes.arrayBuffer();
+  await writeFile(zipPath, Buffer.from(arrayBuffer));
+
+  /** 使用 unzip 命令解压（Node 内置没有 zip 解压） */
+  const binaryName = platform() === "win32" ? "llrt.exe" : "llrt";
+  execSync(`unzip -o -j "${zipPath}" "${binaryName}" -d "${ROOT_DIR}"`, {
+    stdio: "inherit",
+  });
+
+  /** linux/mac 需要可执行权限 */
+  if (platform() !== "win32") {
+    execSync(`chmod +x "${LLRT_BIN}"`);
+  }
+
+  await rm(tmpDir, { recursive: true });
+
+  console.log(`LLRT ${version} installed successfully.`);
+}
+
+/** 运行 tsup 编译 */
+function runTsup() {
+  console.log("\n--- Running tsup build ---");
+  execSync("pnpm tsup", { stdio: "inherit", cwd: ROOT_DIR });
+}
+
+/** 使用 LLRT compile 生成 .lrt 文件 */
+function runLlrtCompile() {
+  console.log("\n--- Running LLRT compile ---");
+  execSync(`${LLRT_BIN} compile ./dist_backend/app.cjs ./dist_backend/app.lrt`, {
+    stdio: "inherit",
+    cwd: ROOT_DIR,
+  });
+  console.log("\nBackend build completed successfully!");
+}
+
+/** 主流程 */
+async function main() {
+  await ensureLlrt();
+  runTsup();
+  runLlrtCompile();
+}
+
+main().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});
diff --git a/scripts/dev-all.ts b/scripts/dev-all.ts
new file mode 100644
index 0000000..931a955
--- /dev/null
+++ b/scripts/dev-all.ts
@@ -0,0 +1,45 @@
+/**
+ * 同时启动前端 (vite) 和后端 (tsx backend/app.ts) 的开发服务器
+ * Ctrl+C 会同时终止两个进程
+ */
+import { spawn } from "node:child_process";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const ROOT_DIR = join(__dirname, "..");
+
+/** 子进程列表，用于退出时统一清理 */
+const children: ReturnType<typeof spawn>[] = [];
+
+/** 清理所有子进程 */
+function cleanup() {
+  for (const child of children) {
+    child.kill("SIGTERM");
+  }
+}
+
+process.on("SIGINT", () => {
+  cleanup();
+  process.exit(0);
+});
+process.on("SIGTERM", () => {
+  cleanup();
+  process.exit(0);
+});
+
+console.log("Starting frontend and backend dev servers...\n");
+
+const backend = spawn("pnpx", ["tsx", "backend/app.ts"], {
+  cwd: ROOT_DIR,
+  stdio: "inherit",
+  shell: true,
+});
+children.push(backend);
+
+const frontend = spawn("pnpm", ["dev:frontend"], {
+  cwd: ROOT_DIR,
+  stdio: "inherit",
+  shell: true,
+});
+children.push(frontend);
diff --git a/tsconfig.json b/tsconfig.json
index f70380e..f049896 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,6 +11,9 @@
     },
     {
       "path": "./tsconfig.node.json"
+    },
+    {
+      "path": "./tsconfig.scripts.json"
     }
   ]
 }
\ No newline at end of file
diff --git a/tsconfig.scripts.json b/tsconfig.scripts.json
new file mode 100644
index 0000000..3c372db
--- /dev/null
+++ b/tsconfig.scripts.json
@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "types": ["node"],
+    "esModuleInterop": true,
+    "strict": true
+  },
+  "include": ["scripts"]
+}