Santiago Balaguer developed and integrated ParaRegistration proxy types to automate parachain lifecycle management across Polkadot, Kusama, and Westend networks. Working within the polkadot-fellows/runtimes and paritytech/polkadot-sdk repositories, he implemented runtime changes in Rust using Substrate, enabling deployment portals to reserve paraIDs, register parachains, and manage proxies through standardized workflows. His work focused on updating relay chain configurations and integrating Utilities pallet support, reducing manual orchestration and streamlining onboarding for new parachain projects. Over the month, Santiago delivered two features that improved cross-network deployment strategies, demonstrating depth in blockchain runtime development and practical application of proxy patterns.