Worked on the neondatabase/website repository to enhance PostgreSQL documentation, focusing on clarifying the behavior of the NOT NULL constraint when applied to the qty column during ALTER TABLE operations. Used Markdown to update and refine technical guides, ensuring users understand the implications of adding constraints when existing NULL values are present. Improved the PostgreSQL array tutorial by addressing grammar and clarity, contributing to more accessible and accurate documentation. Leveraged expertise in PostgreSQL and documentation best practices to reduce ambiguity for users performing migrations, ultimately supporting lower support overhead and enabling faster onboarding for those working with PostgreSQL databases.