Worked on the spacelift-io/spacectl repository, focusing on enhancing local preview workflows through targeted bug fixes and performance improvements. Addressed issues with project-root scoping by refining ignore pattern resolution, ensuring operations were reliably limited to the intended directory and reducing the risk of unintended side effects. Introduced a new archive creation logic in Go that skips ignored directories during tar.gz generation, optimizing file archiving and improving processing speed. Leveraged skills in CLI development, file archiving, and performance optimization to deliver more predictable and efficient local preview experiences, with changes validated through improved reliability and responsiveness in typical developer workflows.