During August 2025, Favadi developed a source IP-based policy matching feature for the pomerium/pomerium repository, focusing on enhancing network security and compliance. The work involved implementing policy-driven access control by integrating Open Policy Agent (OPA) to evaluate client source IPs, including support for CIDR ranges. Using Go, Favadi wrote new source files to handle robust IP parsing and validation, ensuring accurate policy enforcement at the network edge. Comprehensive tests were added to verify correctness and prevent regressions. This feature enables organizations to tie access decisions directly to client network origins, reflecting a deep understanding of backend development and policy as code.