Worked across erigon, openvm, and cosmos-sdk repositories to deliver backend features and quality improvements using Go and Rust. Developed configurable command-line options in erigon, enabling custom chain initialization and improved logging control. Enhanced code readability by standardizing comment formatting and refactored internal utilities in cosmos-sdk, consolidating slice operations for better maintainability and efficiency. Upgraded openvm’s CLI and SDK to Clap 4.x, removing deprecated attributes and reducing compiler warnings. Addressed a critical bug in erigon’s logging precedence, ensuring correct verbosity behavior. Focused on code cleanup, dependency management, and documentation to support safer releases and faster iteration cycles.