diff --git a/includes/tasks/check_deps.js b/includes/tasks/check_deps.js
new file mode 100644
index 0000000..b68ca5d
--- /dev/null
+++ b/includes/tasks/check_deps.js
@@ -0,0 +1,28 @@
+const logger = require('hexo-log')();
+
+function checkDep(name) {
+    try {
+        require.resolve(name);
+        return true;
+    } catch(e) {
+        logger.error(`Package ${name} is not installed.`)
+    }
+    return false;
+}
+
+logger.info('Checking dependencies');
+
+const missingDeps = [
+    'json-stringify-safe',
+    'node-prismjs',
+    'prismjs',
+    'qr-image'
+].map(checkDep).some(installed => !installed);
+
+if (missingDeps) {
+    logger.error('Please install the missing dependencies.');
+    logger.error('You can enter suka-theme directory and run following commands:');
+    logger.error('$ npm i --production');
+    logger.error('$ yarn --production # If you prefer yarn.');
+    process.exit(-1);
+}
\ No newline at end of file
diff --git a/includes/tasks/welcome.js b/includes/tasks/welcome.js
new file mode 100644
index 0000000..5bd5b44
--- /dev/null
+++ b/includes/tasks/welcome.js
@@ -0,0 +1,6 @@
+const logger = require('hexo-log')();
+
+logger.info(`----------------------------------
+Suka Theme (https://theme-suka.skk.moe)
+----------------------------------------
+`);
diff --git a/scripts/index.js b/scripts/index.js
new file mode 100644
index 0000000..978c567
--- /dev/null
+++ b/scripts/index.js
@@ -0,0 +1,9 @@
+// Welcome Message
+require('../includes/tasks/welcome');
+// Check required dependencies
+require('../includes/tasks/check_deps');
+
+// Debug helper
+hexo.extend.helper.register('console', function () {
+    console.log(arguments)
+});