Modularizing a Monolithic App Using Elixir's Hot Code Loading

In this article, the author, Lucas Sifoni, explains how to utilize Elixir and Erlang VM's hot code loading features to create dynamic, client-specific applications within a monolithic codebase. Sifoni details his approach with the Alzo application, which is designed to run client-specific features without compromising the overall architecture. He outlines the advantages of dynamically loading modules, how to structure client-specific apps, and the importance of build-time isolation to prevent dependencies between dynamic and static components. By leveraging hot code loading, Sifoni demonstrates how he can implement client needs effectively, making ongoing development easier while maintaining a robust testing process. He emphasizes the practicality of this technique, especially in business contexts where applications may need frequent updates or customization without service disruptions.