callstackincubator · CAMOBAP · Aug 12, 2025 · Jul 29, 2025 · Jul 30, 2025 · Aug 7, 2025
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
@@ -52,8 +52,35 @@ jobs:
         working-directory: packages/react-native-sandbox
         run: npm pack
 
+  test:
+    runs-on: macos-15
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install asdf
+        uses: asdf-vm/actions/setup@v4
+
+      - name: Tools cache
+        id: asdf-cache
+        uses: actions/cache@v4
+        with:
+          path: ~/.asdf/
+          key: ${{ runner.os }}-${{ hashFiles('**/.tool-versions') }}
+
+      - name: Install tools from .tool-versions
+        if: steps.asdf-cache.outputs.cache-hit != 'true'
+        uses: asdf-vm/actions/install@v4
+
+      - name: Install dependencies
+        run: bun install --frozen-lockfile
+
+      - name: Run Test
+        run: bun run test
+
   example-compilation:
     runs-on: macos-15
+    needs: [lint, test]
     strategy:
       matrix:
         example: [demo] # side-by-side, recursive, fs-experiment

diff --git a/README.md b/README.md
@@ -142,9 +142,13 @@ AppRegistry.registerComponent("SandboxApp", () => App);
 
 Full examples:
 
+- [`apps/demo`](./apps/demo/README.md): Security demo.
 - [`apps/side-by-side`](./apps/side-by-side/README.md): An example application with two sandbox instances.
 - [`apps/recursive`](./apps/recursive/README.md): An example application with few nested sandbox instances.
-- [`apps/demo`](./apps/demo/README.md): Security demo.
+- [`apps/p2p-counter`](./apps/p2p-counter/README.md): Direct sandbox-to-sandbox communication demo.
+
+
+
 
 ## 📚 API Reference
 
@@ -155,7 +159,7 @@ For comprehensive API documentation, installation instructions, and advanced usa
 We're actively working on expanding the capabilities of `react-native-sandbox`. Here's what's planned:
 
 - [ ] **Android Support** - Full cross-platform compatibility
-- [ ] **Inter-Sandbox Communication** - Secure direct communication between sandbox instances
+- [x] **Inter-Sandbox Communication** - Secure direct communication between sandbox instances
 - [ ] **[RE.Pack](https://github.com/callstack/repack) Integration** - Advanced bundling and module federation
   - Hot-reloading for sandbox instances in development
   - Dynamic bundle fetching from remote sources

diff --git a/apps/demo/App.tsx b/apps/demo/App.tsx
@@ -5,7 +5,7 @@ import Toast from 'react-native-toast-message'
 
 import CrashIfYouCanDemo from './CrashIfYouCanDemo'
 
-const SideBySideDemo: React.FC = () => {
+const DemoApp: React.FC = () => {
   return (
     <SafeAreaView>
       <View style={styles.container}>
@@ -69,4 +69,4 @@ const styles = StyleSheet.create({
   },
 })
 
-export default SideBySideDemo
+export default DemoApp
diff --git a/apps/demo/ios/Demo/Images.xcassets/cs-gradient.imageset/Contents.json b/apps/demo/ios/Demo/Images.xcassets/cs-gradient.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+} 
diff --git a/apps/demo/ios/Demo/Images.xcassets/cs-gradient.imageset/cs-gradient.png b/apps/demo/ios/Demo/Images.xcassets/cs-gradient.imageset/cs-gradient.png
@@ -0,0 +1 @@
+../../../../../../docs/images/cs-gradient.png
diff --git a/apps/demo/ios/Demo/LaunchScreen.storyboard b/apps/demo/ios/Demo/LaunchScreen.storyboard
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15702" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="23727" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <device id="retina4_7" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15704"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="23721"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -16,32 +17,57 @@
                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Demo" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="GJd-Yh-RWb">
-                                <rect key="frame" x="0.0" y="202" width="375" height="43"/>
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="cs-gradient" translatesAutoresizingMaskIntoConstraints="NO" id="bg-image">
+                                <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                            </imageView>
+                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="{callstack}" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" translatesAutoresizingMaskIntoConstraints="NO" id="callstack-label">
+                                <rect key="frame" x="233.5" y="20" width="91.5" height="21"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="18"/>
+                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" textAlignment="center" lineBreakMode="middleTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="GJd-Yh-RWb">
+                                <rect key="frame" x="0.0" y="225" width="375" height="86"/>
+                                <string key="text">Sandbox:
+Security Demo</string>
                                 <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
+                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                 <nil key="highlightedColor"/>
                             </label>
                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Powered by React Native" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="MN2-I3-ftu">
                                 <rect key="frame" x="0.0" y="626" width="375" height="21"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                 <nil key="highlightedColor"/>
                             </label>
                         </subviews>
-                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="Bcu-3y-fUS"/>
+                        <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                         <constraints>
                             <constraint firstItem="Bcu-3y-fUS" firstAttribute="bottom" secondItem="MN2-I3-ftu" secondAttribute="bottom" constant="20" id="OZV-Vh-mqD"/>
                             <constraint firstItem="Bcu-3y-fUS" firstAttribute="centerX" secondItem="GJd-Yh-RWb" secondAttribute="centerX" id="Q3B-4B-g5h"/>
                             <constraint firstItem="MN2-I3-ftu" firstAttribute="centerX" secondItem="Bcu-3y-fUS" secondAttribute="centerX" id="akx-eg-2ui"/>
+                            <constraint firstItem="bg-image" firstAttribute="bottom" secondItem="Ze5-6b-2t3" secondAttribute="bottom" id="bg-bottom"/>
+                            <constraint firstItem="bg-image" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" id="bg-leading"/>
+                            <constraint firstItem="bg-image" firstAttribute="top" secondItem="Ze5-6b-2t3" secondAttribute="top" id="bg-top"/>
+                            <constraint firstItem="bg-image" firstAttribute="trailing" secondItem="Ze5-6b-2t3" secondAttribute="trailing" id="bg-trailing"/>
+                            <constraint firstItem="callstack-label" firstAttribute="top" secondItem="Bcu-3y-fUS" secondAttribute="top" id="callstack-top"/>
+                            <constraint firstItem="Bcu-3y-fUS" firstAttribute="trailing" secondItem="callstack-label" secondAttribute="trailing" constant="50" id="callstack-trailing"/>
                             <constraint firstItem="MN2-I3-ftu" firstAttribute="leading" secondItem="Bcu-3y-fUS" secondAttribute="leading" id="i1E-0Y-4RG"/>
-                            <constraint firstItem="GJd-Yh-RWb" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="bottom" multiplier="1/3" constant="1" id="moa-c2-u7t"/>
+                            <constraint firstItem="GJd-Yh-RWb" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="bottom" multiplier="2/5" constant="1" id="moa-c2-u7t"/>
                             <constraint firstItem="GJd-Yh-RWb" firstAttribute="leading" secondItem="Bcu-3y-fUS" secondAttribute="leading" symbolic="YES" id="x7j-FC-K8j"/>
                         </constraints>
-                        <viewLayoutGuide key="safeArea" id="Bcu-3y-fUS"/>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>
             <point key="canvasLocation" x="52.173913043478265" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="cs-gradient" width="300" height="533.5"/>
+        <systemColor name="systemBackgroundColor">
+            <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+        </systemColor>
+    </resources>
 </document>
diff --git a/apps/demo/ios/Podfile.lock b/apps/demo/ios/Podfile.lock
@@ -2019,7 +2019,7 @@ PODS:
     - React-timing
     - React-utils
     - SocketRocket
-  - React-Sandbox (0.2.0):
+  - React-Sandbox (0.4.0):
     - boost
     - DoubleConversion
     - fast_float
@@ -2451,7 +2451,7 @@ SPEC CHECKSUMS:
   React-runtimeexecutor: 17c70842d5e611130cb66f91e247bc4a609c3508
   React-RuntimeHermes: 3c88e6e1ea7ea0899dcffc77c10d61ea46688cfd
   React-runtimescheduler: 024500621c7c93d65371498abb4ee26d34f5d47d
-  React-Sandbox: 789583cf1f6db8c2bf95e54125aef4314fe9d8ca
+  React-Sandbox: e3cf3c955559ed9f0bf014b29dce1e94600cd790
   React-timing: c3c923df2b86194e1682e01167717481232f1dc7
   React-utils: 9154a037543147e1c24098f1a48fc8472602c092
   ReactAppDependencyProvider: afd905e84ee36e1678016ae04d7370c75ed539be

diff --git a/apps/demo/jest.config.js b/apps/demo/jest.config.js
@@ -1,3 +1,7 @@
 module.exports = {
   preset: 'react-native',
+  transformIgnorePatterns: [
+    'node_modules/(?!(react-native|@react-native|@react-native-community|@callstack/react-native-sandbox|react-native-toast-message|react-native-reanimated)/)',
+  ],
+  setupFilesAfterEnv: ['<rootDir>/../../jest.setup.js'],
 }
diff --git a/apps/demo/package.json b/apps/demo/package.json
@@ -6,7 +6,8 @@
     "android": "react-native run-android",
     "ios": "react-native run-ios",
     "start": "react-native start",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "test": "jest"
   },
   "dependencies": {
     "react": "19.1.0",

diff --git a/...periment/ios/MultInstance-FSExperiment/Images.xcassets/cs-gradient.imageset/Contents.json b/...periment/ios/MultInstance-FSExperiment/Images.xcassets/cs-gradient.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "cs-gradient.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+} 
diff --git a/...riment/ios/MultInstance-FSExperiment/Images.xcassets/cs-gradient.imageset/cs-gradient.png b/...riment/ios/MultInstance-FSExperiment/Images.xcassets/cs-gradient.imageset/cs-gradient.png
@@ -0,0 +1 @@
+../../../../../../docs/images/cs-gradient.png