Luke Childs focused on backend reliability and connectivity improvements across two open source projects. For trpc/trpc, he refactored WebSocket handling in the Fastify adapter, enhancing error management and adding regression tests to ensure robust real-time connections using TypeScript and Node.js. His changes reduced unnecessary promise re-throws and improved test coverage, directly addressing production stability. In BlueWallet/BlueWallet, Luke restored Electrum server connectivity by updating peer configurations in BlueElectrum.ts, which improved wallet uptime for users. His work demonstrated depth in API development, error handling, and full stack troubleshooting, with targeted code changes that addressed both infrastructure and user-facing reliability issues.