Integrating Gleam for Enhanced Type Safety in Elixir

Paweł Świątkowski explores how Gleam, a statically-typed language that runs on the BEAM (Erlang Virtual Machine), can be integrated into an Elixir project to add type safety. The article provides a step-by-step guide to setting up Gleam within an Elixir codebase, describing the process of creating a Gleam module for a university course enrollment system. It also explains how to write and run Gleam unit tests, and how to call Gleam code from Elixir. Additionally, it covers extending the project to include a waitlist feature and the handling of related errors. Świątkowski emphasizes the benefits of using Gleam for complex business logic that requires reliable and error-free code.