Worked on the janhq/jan repository to enhance Windows build reliability by standardizing OS detection within the Makefile. The approach involved consolidating scattered, ad-hoc OS checks into a single, centralized variable, which streamlined Windows-specific commands and paths. This change improved cross-platform consistency and simplified the build process for Windows contributors, making ongoing maintenance more straightforward. The work was implemented through targeted Makefile scripting and build automation techniques, focusing on feature stabilization rather than bug fixes. By leveraging Makefile and cross-platform development skills, the developer contributed to a more maintainable and accessible build system for the project’s Windows users.