diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
new file mode 100644
index 0000000..abd220b
--- /dev/null
+++ b/.github/workflows/npm-publish.yml
@@ -0,0 +1,183 @@
+name: Publish to npm
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to publish (e.g., 5.0.6)'
+        required: true
+        type: string
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout the repository
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      # Setup Deno
+      - name: Setup Deno
+        uses: denoland/setup-deno@v1
+        with:
+          deno-version: v1.x
+
+      # Setup Node.js for npm publishing
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.x'
+          registry-url: 'https://registry.npmjs.org/'
+
+      # Compile binaries for all platforms
+      - name: Compile binaries
+        run: |
+          echo "Compiling binaries for all platforms..."
+          deno task compile
+          echo ""
+          echo "Binary sizes:"
+          ls -lh dist/binaries/
+
+      # Update version in package.json if triggered manually
+      - name: Update version in package.json
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          VERSION=${{ github.event.inputs.version }}
+          echo "Updating package.json to version ${VERSION}"
+          npm version ${VERSION} --no-git-tag-version
+
+      # Extract version from tag if triggered by tag push
+      - name: Extract version from tag
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          VERSION=${GITHUB_REF#refs/tags/v}
+          echo "VERSION=${VERSION}" >> $GITHUB_ENV
+          echo "Extracted version: ${VERSION}"
+
+      # Ensure versions are synchronized
+      - name: Sync versions
+        run: |
+          if [ -n "${VERSION}" ]; then
+            echo "Syncing version ${VERSION} across files..."
+
+            # Update deno.json
+            sed -i "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" deno.json
+
+            # Update package.json
+            npm version ${VERSION} --no-git-tag-version --allow-same-version
+
+            echo "Updated versions:"
+            echo "deno.json: $(grep '"version"' deno.json)"
+            echo "package.json: $(grep '"version"' package.json | head -1)"
+          fi
+
+      # Generate SHA256 checksums for binaries
+      - name: Generate checksums
+        run: |
+          cd dist/binaries
+          sha256sum * > SHA256SUMS
+          echo "Checksums generated:"
+          cat SHA256SUMS
+          cd ../..
+
+      # Create npm package
+      - name: Create npm package
+        run: |
+          echo "Creating npm package..."
+          npm pack
+          echo ""
+          echo "Package created:"
+          ls -lh *.tgz
+
+      # Test package installation locally
+      - name: Test local installation
+        run: |
+          echo "Testing local package installation..."
+          PACKAGE_FILE=$(ls *.tgz)
+          npm install -g ${PACKAGE_FILE}
+
+          echo ""
+          echo "Testing nupst command:"
+          nupst --version || echo "Note: Binary execution may fail in CI environment"
+
+          echo ""
+          echo "Checking installed files:"
+          npm ls -g @serve.zone/nupst
+
+      # Publish to npm (only on tag push or manual trigger)
+      - name: Publish to npm
+        if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: |
+          echo "Publishing to npm registry..."
+          npm publish --access public
+
+          echo ""
+          echo "✅ Successfully published @serve.zone/nupst to npm!"
+          echo ""
+          echo "Package info:"
+          npm view @serve.zone/nupst
+
+      # Create GitHub Release (only on tag push)
+      - name: Create GitHub Release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            dist/binaries/nupst-*
+            dist/binaries/SHA256SUMS
+            *.tgz
+          generate_release_notes: true
+          body: |
+            ## NUPST ${{ env.VERSION }}
+
+            ### Installation
+
+            #### Via npm (recommended)
+            ```bash
+            npm install -g @serve.zone/nupst
+            ```
+
+            #### Direct download
+            Download the appropriate binary for your platform from the assets below.
+
+            ### Platform Support
+            - Linux x64 / ARM64
+            - macOS x64 / ARM64 (Apple Silicon)
+            - Windows x64
+
+            ### Checksums
+            SHA256 checksums are available in `SHA256SUMS` file.
+
+  # Verify the published package
+  verify:
+    needs: build-and-publish
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
+
+    steps:
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.x'
+
+      - name: Wait for npm propagation
+        run: sleep 30
+
+      - name: Verify npm package
+        run: |
+          echo "Verifying published package..."
+          npm view @serve.zone/nupst
+
+          echo ""
+          echo "Testing installation from npm:"
+          npm install -g @serve.zone/nupst
+
+          echo ""
+          echo "Package installed successfully!"
+          which nupst || echo "Binary location check skipped"
\ No newline at end of file
diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..4b0f1eb
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,54 @@
+# Source code (not needed for binary distribution)
+/ts/
+/test/
+mod.ts
+*.ts
+
+# Development files
+.git/
+.gitea/
+.claude/
+.serena/
+.nogit/
+.github/
+deno.json
+deno.lock
+tsconfig.json
+
+# Scripts not needed for npm
+/scripts/compile-all.sh
+install.sh
+uninstall.sh
+example-action.sh
+
+# Documentation files not needed for npm package
+readme.plan.md
+readme.hints.md
+npm-publish-instructions.md
+docs/
+
+# IDE and editor files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Keep only the install-binary.js in scripts/
+/scripts/*
+!/scripts/install-binary.js
+
+# Exclude all dist directory (binaries will be downloaded during install)
+/dist/
+
+# Logs and temporary files
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Other
+node_modules/
+.env
+.env.*
\ No newline at end of file
diff --git a/bin/nupst-wrapper.js b/bin/nupst-wrapper.js
new file mode 100644
index 0000000..3f3353b
--- /dev/null
+++ b/bin/nupst-wrapper.js
@@ -0,0 +1,108 @@
+#!/usr/bin/env node
+
+/**
+ * NUPST npm wrapper
+ * This script executes the appropriate pre-compiled binary based on the current platform
+ */
+
+import { spawn } from 'child_process';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import { existsSync } from 'fs';
+import { platform, arch } from 'os';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+/**
+ * Get the binary name for the current platform
+ */
+function getBinaryName() {
+  const plat = platform();
+  const architecture = arch();
+
+  // Map Node's platform/arch to our binary naming
+  const platformMap = {
+    'darwin': 'macos',
+    'linux': 'linux',
+    'win32': 'windows'
+  };
+
+  const archMap = {
+    'x64': 'x64',
+    'arm64': 'arm64'
+  };
+
+  const mappedPlatform = platformMap[plat];
+  const mappedArch = archMap[architecture];
+
+  if (!mappedPlatform || !mappedArch) {
+    console.error(`Error: Unsupported platform/architecture: ${plat}/${architecture}`);
+    console.error('Supported platforms: Linux, macOS, Windows');
+    console.error('Supported architectures: x64, arm64');
+    process.exit(1);
+  }
+
+  // Construct binary name
+  let binaryName = `nupst-${mappedPlatform}-${mappedArch}`;
+  if (plat === 'win32') {
+    binaryName += '.exe';
+  }
+
+  return binaryName;
+}
+
+/**
+ * Execute the binary
+ */
+function executeBinary() {
+  const binaryName = getBinaryName();
+  const binaryPath = join(__dirname, '..', 'dist', 'binaries', binaryName);
+
+  // Check if binary exists
+  if (!existsSync(binaryPath)) {
+    console.error(`Error: Binary not found at ${binaryPath}`);
+    console.error('This might happen if:');
+    console.error('1. The postinstall script failed to run');
+    console.error('2. The platform is not supported');
+    console.error('3. The package was not installed correctly');
+    console.error('');
+    console.error('Try reinstalling the package:');
+    console.error('  npm uninstall -g @serve.zone/nupst');
+    console.error('  npm install -g @serve.zone/nupst');
+    process.exit(1);
+  }
+
+  // Spawn the binary with all arguments passed through
+  const child = spawn(binaryPath, process.argv.slice(2), {
+    stdio: 'inherit',
+    shell: false
+  });
+
+  // Handle child process events
+  child.on('error', (err) => {
+    console.error(`Error executing nupst: ${err.message}`);
+    process.exit(1);
+  });
+
+  child.on('exit', (code, signal) => {
+    if (signal) {
+      process.kill(process.pid, signal);
+    } else {
+      process.exit(code || 0);
+    }
+  });
+
+  // Forward signals to child process
+  const signals = ['SIGINT', 'SIGTERM', 'SIGHUP'];
+  signals.forEach(signal => {
+    process.on(signal, () => {
+      if (!child.killed) {
+        child.kill(signal);
+      }
+    });
+  });
+}
+
+// Execute
+executeBinary();
\ No newline at end of file
diff --git a/changelog.md b/changelog.md
index f859b9d..923a2c3 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## 2025-10-22 - 5.1.0 - feat(packaging)
+Add npm packaging and installer: wrapper, postinstall downloader, publish workflow, and packaging files
+
+- Add package.json (v5.0.5) and npm packaging metadata to publish @serve.zone/nupst
+- Include a small Node.js wrapper (bin/nupst-wrapper.js) to execute platform-specific precompiled binaries
+- Add postinstall script (scripts/install-binary.js) that downloads the correct binary for the current platform and sets executable permissions
+- Add GitHub Actions workflow (.github/workflows/npm-publish.yml) to build binaries, pack and publish to npm, and create releases
+- Add .npmignore to keep source, tests and dev files out of npm package; keep only runtime installer and wrapper
+- Move example action script into docs (docs/example-action.sh) and remove the top-level example-action.sh
+- Include generated npm package artifact (serve.zone-nupst-5.0.5.tgz) and npmextra.json
+
 ## 2025-10-18 - 4.0.0 - BREAKING CHANGE(core): Complete migration to Deno runtime
 
 **MAJOR RELEASE: NUPST v4.0 is a complete rewrite powered by Deno**
diff --git a/example-action.sh b/docs/example-action.sh
similarity index 100%
rename from example-action.sh
rename to docs/example-action.sh
diff --git a/npmextra.json b/npmextra.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/npmextra.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..d2ed159
--- /dev/null
+++ b/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "@serve.zone/nupst",
+  "version": "5.0.5",
+  "description": "Network UPS Shutdown Tool - Monitor SNMP-enabled UPS devices and orchestrate graceful system shutdowns during power emergencies",
+  "keywords": [
+    "ups",
+    "snmp",
+    "power",
+    "shutdown",
+    "monitoring",
+    "cyberpower",
+    "apc",
+    "eaton",
+    "tripplite",
+    "liebert",
+    "vertiv",
+    "battery",
+    "backup"
+  ],
+  "homepage": "https://code.foss.global/serve.zone/nupst",
+  "bugs": {
+    "url": "https://code.foss.global/serve.zone/nupst/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://code.foss.global/serve.zone/nupst.git"
+  },
+  "author": "Serve Zone",
+  "license": "MIT",
+  "type": "module",
+  "bin": {
+    "nupst": "./bin/nupst-wrapper.js"
+  },
+  "scripts": {
+    "postinstall": "node scripts/install-binary.js",
+    "prepublishOnly": "echo 'Publishing NUPST binaries to npm...'",
+    "test": "echo 'Tests are run with Deno: deno task test'"
+  },
+  "files": [
+    "bin/",
+    "scripts/install-binary.js",
+    "readme.md",
+    "license",
+    "changelog.md"
+  ],
+  "engines": {
+    "node": ">=14.0.0"
+  },
+  "os": [
+    "darwin",
+    "linux",
+    "win32"
+  ],
+  "cpu": [
+    "x64",
+    "arm64"
+  ],
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  }
+}
\ No newline at end of file
diff --git a/readme.md b/readme.md
index 4302e93..07aa8f5 100644
--- a/readme.md
+++ b/readme.md
@@ -52,7 +52,24 @@ nupst service status
 
 ## 📥 Installation
 
-### Automated Installer (Recommended)
+### Via npm (NEW! - Recommended)
+
+Install NUPST globally using npm:
+
+```bash
+npm install -g @serve.zone/nupst
+```
+
+**Benefits:**
+- Automatic platform detection and binary download
+- Downloads only the binary for your platform (~400-500MB)
+- Easy updates via `npm update -g @serve.zone/nupst`
+- Version management with npm
+- Works with Node.js >=14
+
+**Note:** The installation will download the appropriate binary from GitHub releases during the postinstall step.
+
+### Automated Installer Script
 
 The installer script handles everything automatically:
 
diff --git a/scripts/install-binary.js b/scripts/install-binary.js
new file mode 100644
index 0000000..f495923
--- /dev/null
+++ b/scripts/install-binary.js
@@ -0,0 +1,231 @@
+#!/usr/bin/env node
+
+/**
+ * NUPST npm postinstall script
+ * Downloads the appropriate binary for the current platform from GitHub releases
+ */
+
+import { platform, arch } from 'os';
+import { existsSync, mkdirSync, writeFileSync, chmodSync, unlinkSync } from 'fs';
+import { join, dirname } from 'path';
+import { fileURLToPath } from 'url';
+import https from 'https';
+import { pipeline } from 'stream';
+import { promisify } from 'util';
+import { createWriteStream } from 'fs';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const streamPipeline = promisify(pipeline);
+
+// Configuration
+const REPO_BASE = 'https://code.foss.global/serve.zone/nupst';
+const VERSION = process.env.npm_package_version || '5.0.5';
+
+function getBinaryInfo() {
+  const plat = platform();
+  const architecture = arch();
+
+  const platformMap = {
+    'darwin': 'macos',
+    'linux': 'linux',
+    'win32': 'windows'
+  };
+
+  const archMap = {
+    'x64': 'x64',
+    'arm64': 'arm64'
+  };
+
+  const mappedPlatform = platformMap[plat];
+  const mappedArch = archMap[architecture];
+
+  if (!mappedPlatform || !mappedArch) {
+    return { supported: false, platform: plat, arch: architecture };
+  }
+
+  let binaryName = `nupst-${mappedPlatform}-${mappedArch}`;
+  if (plat === 'win32') {
+    binaryName += '.exe';
+  }
+
+  return {
+    supported: true,
+    platform: mappedPlatform,
+    arch: mappedArch,
+    binaryName,
+    originalPlatform: plat
+  };
+}
+
+function downloadFile(url, destination) {
+  return new Promise((resolve, reject) => {
+    console.log(`Downloading from: ${url}`);
+
+    // Follow redirects
+    const download = (url, redirectCount = 0) => {
+      if (redirectCount > 5) {
+        reject(new Error('Too many redirects'));
+        return;
+      }
+
+      https.get(url, (response) => {
+        if (response.statusCode === 301 || response.statusCode === 302) {
+          console.log(`Following redirect to: ${response.headers.location}`);
+          download(response.headers.location, redirectCount + 1);
+          return;
+        }
+
+        if (response.statusCode !== 200) {
+          reject(new Error(`Failed to download: ${response.statusCode} ${response.statusMessage}`));
+          return;
+        }
+
+        const totalSize = parseInt(response.headers['content-length'], 10);
+        let downloadedSize = 0;
+        let lastProgress = 0;
+
+        response.on('data', (chunk) => {
+          downloadedSize += chunk.length;
+          const progress = Math.round((downloadedSize / totalSize) * 100);
+
+          // Only log every 10% to reduce noise
+          if (progress >= lastProgress + 10) {
+            console.log(`Download progress: ${progress}%`);
+            lastProgress = progress;
+          }
+        });
+
+        const file = createWriteStream(destination);
+
+        pipeline(response, file, (err) => {
+          if (err) {
+            reject(err);
+          } else {
+            console.log('Download complete!');
+            resolve();
+          }
+        });
+      }).on('error', reject);
+    };
+
+    download(url);
+  });
+}
+
+async function main() {
+  console.log('===========================================');
+  console.log('  NUPST - Binary Installation');
+  console.log('===========================================');
+  console.log('');
+
+  const binaryInfo = getBinaryInfo();
+
+  if (!binaryInfo.supported) {
+    console.error(`❌ Error: Unsupported platform/architecture: ${binaryInfo.platform}/${binaryInfo.arch}`);
+    console.error('');
+    console.error('Supported platforms:');
+    console.error('  • Linux (x64, arm64)');
+    console.error('  • macOS (x64, arm64)');
+    console.error('  • Windows (x64)');
+    console.error('');
+    console.error('If you believe your platform should be supported, please file an issue:');
+    console.error('  https://code.foss.global/serve.zone/nupst/issues');
+    process.exit(1);
+  }
+
+  console.log(`Platform: ${binaryInfo.platform} (${binaryInfo.originalPlatform})`);
+  console.log(`Architecture: ${binaryInfo.arch}`);
+  console.log(`Binary: ${binaryInfo.binaryName}`);
+  console.log(`Version: ${VERSION}`);
+  console.log('');
+
+  // Create dist/binaries directory if it doesn't exist
+  const binariesDir = join(__dirname, '..', 'dist', 'binaries');
+  if (!existsSync(binariesDir)) {
+    console.log('Creating binaries directory...');
+    mkdirSync(binariesDir, { recursive: true });
+  }
+
+  const binaryPath = join(binariesDir, binaryInfo.binaryName);
+
+  // Check if binary already exists and skip download
+  if (existsSync(binaryPath)) {
+    console.log('✓ Binary already exists, skipping download');
+  } else {
+    // Construct download URL
+    // Try release URL first, fall back to raw branch if needed
+    const releaseUrl = `${REPO_BASE}/releases/download/v${VERSION}/${binaryInfo.binaryName}`;
+    const fallbackUrl = `${REPO_BASE}/raw/branch/main/dist/binaries/${binaryInfo.binaryName}`;
+
+    console.log('Downloading platform-specific binary...');
+    console.log('This may take a moment depending on your connection speed.');
+    console.log('');
+
+    try {
+      // Try downloading from release
+      await downloadFile(releaseUrl, binaryPath);
+    } catch (err) {
+      console.log(`Release download failed: ${err.message}`);
+      console.log('Trying fallback URL...');
+
+      try {
+        // Try fallback URL
+        await downloadFile(fallbackUrl, binaryPath);
+      } catch (fallbackErr) {
+        console.error(`❌ Error: Failed to download binary`);
+        console.error(`  Primary URL: ${releaseUrl}`);
+        console.error(`  Fallback URL: ${fallbackUrl}`);
+        console.error('');
+        console.error('This might be because:');
+        console.error('1. The release has not been created yet');
+        console.error('2. Network connectivity issues');
+        console.error('3. The version specified does not exist');
+        console.error('');
+        console.error('You can try:');
+        console.error('1. Installing from source: https://code.foss.global/serve.zone/nupst');
+        console.error('2. Downloading the binary manually from the releases page');
+        console.error('3. Using the install script: curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash');
+
+        // Clean up partial download
+        if (existsSync(binaryPath)) {
+          unlinkSync(binaryPath);
+        }
+
+        process.exit(1);
+      }
+    }
+
+    console.log(`✓ Binary downloaded successfully`);
+  }
+
+  // On Unix-like systems, ensure the binary is executable
+  if (binaryInfo.originalPlatform !== 'win32') {
+    try {
+      console.log('Setting executable permissions...');
+      chmodSync(binaryPath, 0o755);
+      console.log('✓ Binary permissions updated');
+    } catch (err) {
+      console.error(`⚠️  Warning: Could not set executable permissions: ${err.message}`);
+      console.error('   You may need to manually run:');
+      console.error(`   chmod +x ${binaryPath}`);
+    }
+  }
+
+  console.log('');
+  console.log('✅ NUPST installation completed successfully!');
+  console.log('');
+  console.log('You can now use NUPST by running:');
+  console.log('  nupst --help');
+  console.log('');
+  console.log('For initial setup, run:');
+  console.log('  sudo nupst ups add');
+  console.log('');
+  console.log('===========================================');
+}
+
+// Run the installation
+main().catch(err => {
+  console.error(`❌ Installation failed: ${err.message}`);
+  process.exit(1);
+});
\ No newline at end of file
diff --git a/serve.zone-nupst-5.0.5.tgz b/serve.zone-nupst-5.0.5.tgz
new file mode 100644
index 0000000..2ec8a2a
Binary files /dev/null and b/serve.zone-nupst-5.0.5.tgz differ
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 0b85046..0bb98f4 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -1,10 +1,8 @@
 /**
- * commitinfo - reads version from deno.json
+ * autocreated commitinfo by @push.rocks/commitinfo
  */
-import denoConfig from '../deno.json' with { type: 'json' };
-
 export const commitinfo = {
-  name: denoConfig.name,
-  version: denoConfig.version,
-  description: 'Network UPS Shutdown Tool (https://nupst.serve.zone)',
-};
+  name: '@serve.zone/nupst',
+  version: '5.1.0',
+  description: 'Network UPS Shutdown Tool - Monitor SNMP-enabled UPS devices and orchestrate graceful system shutdowns during power emergencies'
+}