During May 2026, contributed to the pqrs-org/KE-complex_modifications repository by developing a macOS input method enhancement that enables users to switch between left and right Shift keys using spacebar activation. This feature was implemented with a focus on front end development and JavaScript, targeting improved typing flexibility and workflow efficiency for users with customized keyboard layouts. The work was delivered as a single, clean commit, ensuring an auditable and maintainable codebase with straightforward rollback capability if needed. No major regressions were introduced, reflecting careful engineering and attention to quality throughout the feature’s development and integration process.