Worked on the nitrojs/nitro repository to enhance API security by implementing a local-origin access restriction for the /_nitro/tasks endpoint. Addressed the risk of external-origin requests accessing sensitive development tasks by introducing a local-origin check function, which was integrated directly into the core request handling flow. This feature ensures that only requests originating from the local environment can interact with the endpoint, effectively blocking unauthorized external access. The solution was developed using TypeScript and focused on backend development principles, reflecting a targeted approach to security-hardening within the codebase. No bugs were fixed during this period, with efforts concentrated on this feature.