Let's say you're building an application that runs on macOS, Linux, and Windows. How might you build the app for each platform you target? Create a build pipeline for each platform.Configure one pipeline to build on each platform.Build for one platform and trust that the results run on all platforms.

To build an application that runs on macOS, Linux, and Windows, you would need to consider the unique requirements and characteristics of each platform. Here's a general step-by-step guide on how you might do this:

1. Identify the Core Functionality: Determine the core functionality of your application that needs to be consistent across all platforms. This will form the basis of your application's codebase.

2. Choose a Cross-Platform Framework: Choose a cross-platform development framework that supports macOS, Linux, and Windows. Examples include Electron, Qt, or JavaFX. These frameworks allow you to write your code once and compile it for different platforms.

3. Write Your Code: Write your application using the chosen framework. Ensure that your code does not contain any platform-specific dependencies that could cause issues when compiling for different platforms.

4. Test Your Code: Regularly test your code on all target platforms to ensure that it behaves as expected. This can be done using unit tests, integration tests, and manual testing.

5. Set Up Your Build Pipelines: For each platform, set up a separate build pipeline. This pipeline should include steps to compile the code, package the application, and run any necessary tests.

6. Configure Your Build Pipelines: Configure each pipeline to run on the appropriate platform. This may involve setting up build agents for each platform, or using a cloud-based CI/CD service that supports multiple platforms.

7. Build Your Application: Run your build pipelines to compile and package your application for each platform. If any issues arise, debug and fix them before re-running the pipeline.

8. Test Your Builds: Once your application has been built for each platform, test it again to ensure that it runs correctly. This should include both functional testing and user acceptance testing.

9. Release Your Application: Once you're satisfied that your application works correctly on all platforms, you can release it. This may involve distributing it through various app stores, or directly from your website.

Remember, building for one platform and trusting that the results run on all platforms is not a good practice. Always test your application on all target platforms to ensure compatibility.

To build an application that runs on macOS, Linux, and Windows, you would need to consider the unique requirements and characteristics of each platform. Here's a general step-by-step guide on how you might do this:

1. Design your application with cross-platform compatibility in mind: This means using a programming language that is supported across all target platforms, and avoiding platform-specific features or libraries where possible.

2. Choose a cross-platform development tool: Tools like Xamarin, Unity, or Electron allow you to write your code once and compile it for multiple platforms. This can save a lot of time and effort, but may not be suitable for all types of applications.

3. Set up a build pipeline for each platform: This is a series of automated processes that take your source code and turn it into a runnable application. Each platform will have its own specific requirements for this process, so you'll need to configure each pipeline separately.

4. Test your application on each platform: This is crucial to ensure that your application runs correctly on all target platforms. You should test on a variety of devices and operating systems to catch any platform-specific bugs or issues.

5. Build your application for each platform: Once you're confident that your application works correctly, you can use your build pipelines to create the final version of your application for each platform.

6. Distribute your application: Each platform will have its own preferred method of distribution. For example, you might distribute your Windows application through the Microsoft Store, your macOS application through the Mac App Store, and your Linux application through a package manager like apt or yum.

Remember, building for one platform and trusting that the results run on all platforms is not a good practice. Always test your application on all target platforms to ensure compatibility.