Zahar focused on improving developer experience and build reliability across open source projects. In the lite-xl/lite-xl repository, he addressed documentation integrity by fixing a broken README link to the build instructions, ensuring contributors could reliably access setup guidance. He used Markdown and shell scripting to validate and clarify documentation, reducing onboarding friction and maintaining repository hygiene. Later, in SerenityOS/serenity, Zahar updated the Bash package checksum in the Ports directory, aligning metadata with the upstream tarball to enhance package authenticity and reproducibility. His work in build systems and package management contributed to more secure, maintainable, and accessible development environments.