which courses best for ROM DEVELOPMENT ?

 If you are interested in learning ROM development, there are several courses and resources available online that can help you get started. Here are a few options:

1. Udemy: Udemy offers various courses on Android development, including ROM development. Search for courses that specifically focus on ROM development or Android system customization. Make sure to read the course descriptions and reviews to find the most relevant and up-to-date options.

2. XDA Developers: XDA Developers is a popular online community for Android development and customization. They have a dedicated section for ROM development, where you can find tutorials, guides, and discussions related to creating custom ROMs. It's a great resource to learn from experienced developers and participate in the community.

3. YouTube tutorials: Many developers share their knowledge and tutorials on YouTube. You can search for ROM development tutorials or Android system customization videos to find step-by-step guides on creating custom ROMs. Some popular channels in the Android development space include XDA Developers, TheUnlockr, and Marques Brownlee (MKBDHD).

4. Online forums and communities: Apart from XDA Developers, there are several other online forums and communities where you can connect with fellow developers, ask questions, and learn from their experiences. Reddit's r/AndroidDev and r/LineageOS subreddits, as well as the Android Development community on Stack Overflow, are great places to start.

5. Documentation and official sources: Android's official documentation provides detailed resources on Android development and system customization. You can explore the Android Open Source Project (AOSP) documentation, which covers various aspects of ROM development. Additionally, specific device manufacturers may have their own documentation or resources for building ROMs for their devices.

Remember that ROM development can be a complex and advanced topic. It's recommended to have a solid understanding of programming, particularly in languages like Java and C++, as well as familiarity with the Android operating system before diving into ROM development.