Amish Shah contributed to both the bitcoin/bitcoin and layer5io/layer5 repositories over a two-month period, focusing on deployment reliability and front-end performance. For bitcoin/bitcoin, he improved the macOS deployment process by updating the macdeployqtplus script in JavaScript and Python to conditionally configure Qt translations only when the translations directory exists, reducing build failures and streamlining CI workflows. In the layer5io/layer5 project, he integrated PurgeCSS into the Gatsby build pipeline, leveraging his skills in CSS optimization and build systems to remove unused CSS and print rejected rules, which reduced CSS payload and enhanced initial render performance for end users.