diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7462061
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+/node_modules/
+
+/*.iml
+/.idea/
+
+/.yarnclean
+/*.log
+
+/dist-dev
+
+/tsconfig.lib.*.json
+/webpack.lib.*.js
+
+/package-lock.json
\ No newline at end of file
diff --git a/Application.js b/Application.js
new file mode 100644
index 0000000..8c34ecd
--- /dev/null
+++ b/Application.js
@@ -0,0 +1,49 @@
+// ---------------------------------------------
+// Copied from https://github.com/eggplanetio/jxa/blob/reference-return/index.js
+// ---------------------------------------------
+
+const exec = require('child_process').execSync;
+
+function dereference(path, args) {
+  try {
+    args = args ? JSON.stringify(args) : '';
+    args = args.substr(1, args.length - 2);
+    
+    const cmd = `osascript -l JavaScript -e '${path}(${args})'`;
+    const res = exec(cmd, {stdio: 'pipe'}).toString().trim();
+    if (res.indexOf('Application') === 0) {
+      return createReference(res);
+    } else {
+      return res;
+    }
+  } catch (e) {
+    // console.log(e);
+  }
+}
+
+function createInspector(path) {
+  return () => `[object JXAReference => ${dereference(path + '.toString')}]`;
+}
+
+function createReference(path) {
+  return new Proxy(
+    (recv, _, args) => dereference(path, args),
+    {
+      apply: (target, thisArg, argumentsList) => dereference(path, argumentsList),
+      
+      get(target, propertyName) {
+        return propertyName === 'inspect'
+          ? createInspector(path)
+          : createReference(`${path}.${propertyName.toString()}`);
+      },
+      
+      set(target, property, value, receiver) {
+        // TODO: Implement `set` proxy handler
+      },
+    },
+  );
+}
+
+module.exports = function (handle) {
+  return createReference('Application("' + handle + '")');
+};
\ No newline at end of file
diff --git a/bin/multiplerun b/bin/multiplerun
new file mode 100755
index 0000000..e2a69c1
--- /dev/null
+++ b/bin/multiplerun
@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+const fs = require('fs');
+const path = require('path');
+const multiplerun = require('../index');
+
+const packageJsonPath = path.join(process.cwd(), 'package.json');
+
+if (!fs.existsSync(packageJsonPath)) {
+  throw new Error(`💀 Undefined "${packageJsonPath}" file.`);
+}
+
+const {multiplerun: layout} = JSON.parse(fs.readFileSync(packageJsonPath, {encoding: 'utf8'}));
+
+if (!layout) {
+  throw new Error(`💀 Undefined "multiplerun" option in "${packageJsonPath}" file.`);
+}
+
+multiplerun(layout[process.argv[2]]);
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..012abe9
--- /dev/null
+++ b/index.js
@@ -0,0 +1,72 @@
+const {exec} = require('child_process');
+const Application = require('./Application');
+
+function useDefaultTerminal(layout) {
+  function run(command) {
+    if (process.platform === 'darwin') {
+      exec(`osascript -e 'tell application "Terminal" to do script "cd ${process.cwd()}; ${command};"'`);
+    } else if (process.platform === 'win32') {
+      exec(`start cmd /k "cd ${process.cwd()} && ${command}"`);
+    }
+  }
+  
+  for (const row of layout) {
+    if (Array.isArray(row)) {
+      for (const command of row) {
+        if (typeof command !== 'string') {
+          throw new Error('???');
+        }
+        run(command);
+      }
+    } else if (typeof row === 'string') {
+      run(row);
+    }
+  }
+}
+
+function useIterm(layout) {
+  const iTerm = Application('iTerm');
+  
+  iTerm.includeStandardAdditions = true;
+  iTerm.activate();
+  
+  iTerm.createWindowWithDefaultProfile();
+  
+  const windowId = iTerm.currentWindow().id();
+  
+  layout.forEach((row, r) => {
+    if (r === 0) return;
+    iTerm.windows.byId(windowId).currentTab().sessions.at(r - 1).splitVerticallyWithDefaultProfile();
+  });
+  
+  let commandCount = 0;
+  
+  layout.forEach(row => {
+    if (typeof row === 'string') {
+      iTerm.windows.byId(windowId).currentTab().sessions.at(commandCount).write({text: `cd ${process.cwd()}; ${row};`});
+      commandCount++;
+    } else if (Array.isArray(row)) {
+      row.forEach((command, c) => {
+        if (c < row.length - 1) {
+          iTerm.windows.byId(windowId).currentTab().sessions.at(commandCount).splitHorizontallyWithDefaultProfile();
+        }
+        iTerm.windows.byId(windowId).currentTab().sessions.at(commandCount).write({text: `cd ${process.cwd()}; ${command};`});
+        commandCount++;
+      });
+    }
+  });
+}
+
+module.exports = function (layout) {
+  if (process.platform === 'darwin') {
+    try {
+      useIterm(layout);
+    } catch (error) {
+      useDefaultTerminal(layout);
+    }
+  } else if (process.platform === 'win32') {
+    useDefaultTerminal(layout);
+  } else {
+    console.error(`😭 Sorry! Only macOS and Windows are supported yet!`);
+  }
+};
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..aa739dc
--- /dev/null
+++ b/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "multiplerun",
+  "version": "0.1.3",
+  "description": "Run multiple commands on multiple terminals (or iTerm split panes)",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "bin": {
+    "multiplerun": "./bin/multiplerun"
+  },
+  "author": "Seoyeon Lee",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/iamssen/multiplerun.git"
+  },
+  "upstream": {
+    "git": "https://github.com/iamssen/multiplerun.git"
+  },
+  "bugs": {
+    "url": "https://github.com/iamssen/multiplerun/issues"
+  },
+  "homepage": "https://github.com/iamssen/multiplerun"
+}
diff --git a/readme-assets/iTerm.png b/readme-assets/iTerm.png
new file mode 100644
index 0000000..79bf4f6
Binary files /dev/null and b/readme-assets/iTerm.png differ
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..8d4bb36
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,37 @@
+# Run multiple commands on multiple terminals (or iTerm split panes)
+
+Install
+
+```sh
+npm install multiplerun --save-dev
+```
+
+And add config to your `package.json`
+
+```json
+{
+  "name": "some-package",
+  "scripts": {
+    "multiplerun-test": "multiplerun test"
+  },
+  "multiplerun": {
+    "test": [
+      "echo multiplerun!",
+      [
+        "echo hello",
+        "echo world"
+      ]
+    ]
+  }
+}
+```
+
+```sh
+npm run multiplerun-test
+```
+
+If you have installed [iTerm.app](https://www.iterm2.com/) on your Mac. You can see like this
+
+![iTerm Example](./readme-assets/iTerm.png)
+
+Or those commands will be executed via default terminal app (`cmd.exe` or `Terminal.app`)
\ No newline at end of file