diff --git a/packages/simplex-chat-nodejs/package.json b/packages/simplex-chat-nodejs/package.json
index 7a8ca08889..a4eadb9cc0 100644
--- a/packages/simplex-chat-nodejs/package.json
+++ b/packages/simplex-chat-nodejs/package.json
@@ -1,8 +1,10 @@
 {
   "name": "simplexjs",
-  "version": "1.0.0",
+  "version": "6.5.3",
   "main": "src/index.js",
   "scripts": {
+    "preinstall": "node src/download-libs.js",
+    "install": "node-gyp configure; node-gyp rebuild --release",
     "install-tools": "npm install -g node-gyp",
     "configure": "node-gyp configure; mkdir libs 2> /dev/null | true",
     "rebuild": "node-gyp rebuild",
@@ -11,6 +13,9 @@
     "build-run": "node-gyp build && node src/index.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "dependencies": {
+    "extract-zip": "^2.0.1"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/simplex-chat/simplex-chat.git"
diff --git a/packages/simplex-chat-nodejs/src/download-libs.js b/packages/simplex-chat-nodejs/src/download-libs.js
new file mode 100644
index 0000000000..cd7fd586fa
--- /dev/null
+++ b/packages/simplex-chat-nodejs/src/download-libs.js
@@ -0,0 +1,213 @@
+const https = require('https');
+const fs = require('fs');
+const path = require('path');
+const extract = require('extract-zip');
+
+const GITHUB_REPO = 'shumvgolove/sx-libs';
+const RELEASE_TAG = process.env.npm_package_version;
+const ROOT_DIR = process.cwd(); // Root of the package being installed
+const LIBS_DIR = path.join(ROOT_DIR, 'libs')
+const INSTALLED_FILE = path.join(LIBS_DIR, 'installed.txt');
+
+// Detect platform and architecture
+function getPlatformInfo() {
+  const platform = process.platform;
+  const arch = process.arch;
+
+  let platformName;
+  let archName;
+
+  if (platform === 'linux') {
+    platformName = 'linux';
+  } else if (platform === 'darwin') {
+    platformName = 'macos';
+  } else if (platform === 'win32') {
+    platformName = 'windows';
+  } else {
+    throw new Error(`Unsupported platform: ${platform}`);
+  }
+
+  if (arch === 'x64') {
+    archName = 'x86_64';
+  } else if (arch === 'arm64') {
+    archName = 'aarch64';
+  } else {
+    throw new Error(`Unsupported architecture: ${arch}`);
+  }
+
+  return { platformName, archName };
+}
+
+// Check if libraries are already installed with the correct version
+function isAlreadyInstalled() {
+  if (!fs.existsSync(INSTALLED_FILE)) {
+    return false;
+  }
+
+  try {
+    const installedVersion = fs.readFileSync(INSTALLED_FILE, 'utf-8').trim();
+    if (installedVersion === RELEASE_TAG) {
+      console.log(`✓ Libraries version ${RELEASE_TAG} already installed`);
+      return true;
+    } else {
+      console.log(`Version mismatch: installed ${installedVersion}, need ${RELEASE_TAG}`);
+      return false;
+    }
+  } catch (err) {
+    console.warn(`Could not read installed.txt: ${err.message}`);
+    return false;
+  }
+}
+
+async function install() {
+  try {
+    // Check if already installed
+    if (isAlreadyInstalled()) {
+      return;
+    }
+
+    const { platformName, archName } = getPlatformInfo();
+    const repoName = GITHUB_REPO.split('/')[1];
+    const zipFilename = `${repoName}-${platformName}-${archName}.zip`;
+    const ZIP_URL = `https://github.com/${GITHUB_REPO}/releases/download/v${RELEASE_TAG}/${zipFilename}`;
+    const ZIP_PATH = path.join(ROOT_DIR, zipFilename);
+    const TEMP_EXTRACT_DIR = path.join(ROOT_DIR, '.temp-extract');
+
+    console.log(`Detected: ${platformName} ${archName}`);
+    console.log(`Downloading: ${zipFilename}`);
+
+    // Create libs directory
+    if (!fs.existsSync(LIBS_DIR)) {
+      fs.mkdirSync(LIBS_DIR, { recursive: true });
+    }
+
+    // Download zip with error handling
+    await downloadFile(ZIP_URL, ZIP_PATH);
+
+    // Extract to temporary directory
+    console.log('Extracting to temporary directory...');
+    if (!fs.existsSync(TEMP_EXTRACT_DIR)) {
+      fs.mkdirSync(TEMP_EXTRACT_DIR, { recursive: true });
+    }
+    await extract(ZIP_PATH, { dir: TEMP_EXTRACT_DIR });
+
+    // Move libs folder contents to final location
+    console.log('Moving libraries to libs/...');
+    const libsSourcePath = path.join(TEMP_EXTRACT_DIR, 'libs');
+
+    if (fs.existsSync(libsSourcePath)) {
+      // Copy all files from libs folder to LIBS_DIR
+      const files = fs.readdirSync(libsSourcePath);
+      files.forEach(file => {
+        const src = path.join(libsSourcePath, file);
+        const dest = path.join(LIBS_DIR, file);
+
+        if (fs.statSync(src).isDirectory()) {
+          copyDirSync(src, dest);
+        } else {
+          fs.copyFileSync(src, dest);
+        }
+      });
+    } else {
+      throw new Error('libs folder not found in zip archive');
+    }
+
+    // Write installed.txt with version
+    fs.writeFileSync(INSTALLED_FILE, RELEASE_TAG, 'utf-8');
+    console.log(`✓ Wrote version ${RELEASE_TAG} to installed.txt`);
+
+    // Cleanup
+    fs.rmSync(TEMP_EXTRACT_DIR, { recursive: true, force: true });
+    fs.unlinkSync(ZIP_PATH);
+    console.log('✓ Installation complete');
+  } catch (err) {
+    console.error('✗ Failed:', err.message);
+    process.exit(1);
+  }
+}
+
+// Helper function to recursively copy directories
+function copyDirSync(src, dest) {
+  if (!fs.existsSync(dest)) {
+    fs.mkdirSync(dest, { recursive: true });
+  }
+  const files = fs.readdirSync(src);
+  files.forEach(file => {
+    const srcFile = path.join(src, file);
+    const destFile = path.join(dest, file);
+    if (fs.statSync(srcFile).isDirectory()) {
+      copyDirSync(srcFile, destFile);
+    } else {
+      fs.copyFileSync(srcFile, destFile);
+    }
+  });
+}
+
+function downloadFile(url, dest) {
+  return new Promise((resolve, reject) => {
+    const file = fs.createWriteStream(dest);
+
+    https.get(url, { headers: { 'User-Agent': 'Node.js' } }, (response) => {
+      // Handle redirects
+      if (response.statusCode === 302 || response.statusCode === 301) {
+        file.destroy();
+        fs.unlink(dest, () => {});
+        return downloadFile(response.headers.location, dest)
+          .then(resolve)
+          .catch(reject);
+      }
+
+      // Handle 404
+      if (response.statusCode === 404) {
+        file.destroy();
+        fs.unlink(dest, () => {});
+        reject(new Error(
+          `Release artifact not found (404). Check:\n` +
+          `  - Repository exists: ${url.split('/releases')[0]}\n` +
+          `  - Release tag exists: v${RELEASE_TAG}\n` +
+          `  - Artifact filename is correct`
+        ));
+        return;
+      }
+
+      // Handle 403
+      if (response.statusCode === 403) {
+        file.destroy();
+        fs.unlink(dest, () => {});
+        reject(new Error(
+          `Access denied (403). The repository may be private.\n` +
+          `Set GITHUB_TOKEN environment variable for private repos.`
+        ));
+        return;
+      }
+
+      // Handle other HTTP errors
+      if (response.statusCode < 200 || response.statusCode >= 300) {
+        file.destroy();
+        fs.unlink(dest, () => {});
+        reject(new Error(
+          `HTTP ${response.statusCode}: Failed to download from ${url}`
+        ));
+        return;
+      }
+
+      response.pipe(file);
+
+      file.on('finish', () => {
+        file.close();
+        resolve();
+      });
+
+      file.on('error', (err) => {
+        fs.unlink(dest, () => {});
+        reject(new Error(`File write error: ${err.message}`));
+      });
+    }).on('error', (err) => {
+      file.destroy();
+      fs.unlink(dest, () => {});
+      reject(new Error(`Download error: ${err.message}`));
+    });
+  });
+}
+
+install();