During December 2024, Am worked on the elixir-lang/elixir repository, focusing on enhancing the Elixir compiler workflow by introducing granular recompilation control. They developed a new Mix task that enables selective recompilation of specific compilers, refactoring the existing reenable logic to integrate this task for improved consistency across the build pipeline. Am expanded the test suite to comprehensively validate the new behavior in diverse scenarios, ensuring robust and reproducible builds. Their work leveraged Elixir and build tool expertise, with a strong emphasis on compiler development and testing. The changes improved build flexibility and developer tooling for Elixir projects, demonstrating thoughtful engineering depth.