Worked on the elixir-ecto/ecto repository to enhance the stability and compatibility of its continuous integration pipeline. Focused on updating the CI configuration, the work involved aligning the build process with Elixir 1.19.5 and OTP 28.4, ensuring that the project remained compatible with supported runtime versions. Using skills in Continuous Integration and YAML, the developer improved build reliability and enabled faster feedback cycles for contributors. No major bugs were addressed during this period, as the primary effort centered on infrastructure alignment. The changes streamlined the CI process, supporting more efficient downstream releases and maintaining robust development workflows for the project.