During August 2025, Krishnadas contributed to the fastify/fastify and nodejs/node repositories, focusing on backend development and network programming using JavaScript and Node.js. He developed the Fastify Permissions Plugin, introducing route-level permission middleware that enables custom access control checks for scalable security in Fastify applications. In nodejs/node, he enhanced IPv6 address handling by implementing precise loopback detection and efficient bracket trimming, improving reliability and performance for network operations. Krishnadas also updated documentation in Markdown to support developer onboarding and plugin discoverability. His work demonstrated depth in both feature design and core networking improvements, addressing practical backend challenges.