During March 2026, Nils contributed to the NousResearch/hermes-agent repository by developing a configurable SSRF check within the browser tool. This feature allows navigation to private URLs for local testing and LAN access while maintaining strict security for cloud-based browsers. Nils implemented the solution using Python and YAML, focusing on backend development and configuration management to ensure flexibility without compromising network security. The work involved introducing a browser.allow_private_urls option, enabling teams to safely test internal resources. Although the contribution was limited to a single feature, it addressed a nuanced security challenge with a targeted, maintainable, and well-scoped engineering approach.