In this insightful episode, Bill dives deep into the realm of package design, shedding light on its crucial role in software development. Here are three key takeaways for Go developers:

  • Code Modularity: Learn how Go’s packaging system creates essential firewalls between program components, enhancing maintainability.

  • Focused Functionality: Discover the importance of designing packages that provide specific functionality, fostering code clarity.

  • Avoiding Pitfalls: Bill warns against common package design mistakes like centralized “common” packages, promoting a layered approach to maintainable code.

In this segment, Bill delves into the intricate world of package design, revealing its pivotal role in software development. Drawing from Brian Kernahan’s insights, he highlights how packages in Go address a significant shortcoming of languages like C by creating firewalls between different program components. By enforcing encapsulation and modularity, Go’s package system fosters code organization and scalability, promoting the creation of isolated, reusable components.

Moreover, Bill emphasizes the importance of designing packages that provide specific functionalities rather than merely containing miscellaneous utilities. Through clear examples, he illustrates the pitfalls of generic packages like “Utils” or “Common” and advocates for a more focused approach to package design. By adhering to this principle, developers can maintain code integrity, minimize dependencies, and ensure better code maintainability. Additionally, Bill introduces the concept of the “flipping pyramid” to caution against monolithic codebases and initiates a discussion about robust type systems’ importance in ensuring code integrity and efficiency.

Things you will learn in this video

  • The importance of clear boundaries between program components for enhanced maintainability.
  • Nuances of effective API design, distinguishing between functional and non-functional packages.
  • The significance of robust type systems in ensuring code integrity and efficiency.


Trusted by top technology companies

We've built our reputation as educators and bring that mentality to every project. When you partner with us, your team will learn best practices and grow along the way.


Engineers Trained


Companies Worldwide


Years in Business