From 55dfbf991c4305ddfb7b9e12fb4fbd6b80d1d6c7 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov <vitalyster@gmail.com>
Date: Tue, 19 Aug 2025 12:59:20 +0300
Subject: [PATCH 1/2] Use package name from `package.json`

---
 src/copyProjectTemplateAndReplace.ts | 8 +++++---
 src/eject.ts                         | 6 ++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/copyProjectTemplateAndReplace.ts b/src/copyProjectTemplateAndReplace.ts
index 8034bb8..2618607 100644
--- a/src/copyProjectTemplateAndReplace.ts
+++ b/src/copyProjectTemplateAndReplace.ts
@@ -20,10 +20,11 @@ const prompt = promptInitializer();
 
 type ContentChangedCallbackOption = 'identical' | 'changed' | 'new' | null;
 
-type Options = {
+export type Options = {
   upgrade?: boolean;
   force?: boolean;
   displayName?: string;
+  packageName?: string;
   ignorePaths?: string[];
 };
 
@@ -79,7 +80,7 @@ function copyProjectTemplateAndReplace(
 
     const relativeFilePath = translateFilePath(path.relative(srcPath, absoluteSrcFilePath))
       .replace(/HelloWorld/g, newProjectName)
-      .replace(/helloworld/g, newProjectName.toLowerCase());
+      .replace(/com\/helloworld/g, options.packageName || newProjectName.toLowerCase());
 
     // Templates may contain files that we don't want to copy.
     // Examples:
@@ -106,7 +107,8 @@ function copyProjectTemplateAndReplace(
       {
         'Hello App Display Name': options.displayName || newProjectName,
         HelloWorld: newProjectName,
-        helloworld: newProjectName.toLowerCase(),
+        'com.helloworld': options.packageName || `com.${newProjectName.toLowerCase()}`,
+        'PRODUCT_BUNDLE_IDENTIFIER = "(.*)"': `PRODUCT_BUNDLE_IDENTIFIER = "${options.packageName || newProjectName}"`
       },
       contentChangedCallback,
     );
diff --git a/src/eject.ts b/src/eject.ts
index f817ba3..ae99d91 100644
--- a/src/eject.ts
+++ b/src/eject.ts
@@ -14,7 +14,7 @@ import fs from 'fs';
 import semver from 'semver';
 import { logger } from '@react-native-community/cli-tools';
 
-import copyProjectTemplateAndReplace from './copyProjectTemplateAndReplace';
+import copyProjectTemplateAndReplace, { Options } from './copyProjectTemplateAndReplace';
 
 /**
  * The eject command re-creates the `android` and `ios` native folders. Because native code can be
@@ -25,6 +25,8 @@ import copyProjectTemplateAndReplace from './copyProjectTemplateAndReplace';
  *
  * - `name` - The short name used for the project, should be TitleCase
  * - `displayName` - The app's name on the home screen
+ * 
+ * This command will use `name` from `package.json` as a package name for Android and iOS apps.
  */
 
 const pkgJson = require(path.resolve('package.json'));
@@ -105,7 +107,7 @@ function eject() {
     process.exit(1);
   }
 
-  const templateOptions = { displayName };
+  const templateOptions: Options = { displayName, packageName: pkgJson.name };
 
   if (!doesIOSExist) {
     logger.info('Generating the iOS folder.');

From 449a755d832a6123c1ab964e3a42787a8a59e0dd Mon Sep 17 00:00:00 2001
From: vitalyster <vitalyster@gmail.com>
Date: Wed, 20 Aug 2025 17:02:15 +0300
Subject: [PATCH 2/2] Fix fallback to projectName

---
 src/copyProjectTemplateAndReplace.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/copyProjectTemplateAndReplace.ts b/src/copyProjectTemplateAndReplace.ts
index 2618607..724ea93 100644
--- a/src/copyProjectTemplateAndReplace.ts
+++ b/src/copyProjectTemplateAndReplace.ts
@@ -80,7 +80,7 @@ function copyProjectTemplateAndReplace(
 
     const relativeFilePath = translateFilePath(path.relative(srcPath, absoluteSrcFilePath))
       .replace(/HelloWorld/g, newProjectName)
-      .replace(/com\/helloworld/g, options.packageName || newProjectName.toLowerCase());
+      .replace(/com\/helloworld/g, options.packageName || `com/${newProjectName.toLowerCase()}`);
 
     // Templates may contain files that we don't want to copy.
     // Examples: