Worked on the pragma-org/amaru repository to enhance CBOR decoding for memoized data structures, focusing on supporting both legacy and modern transaction representations. Refactored the decoding logic in Rust to improve correctness, readability, and maintainability, introducing new functions that accurately interpret transaction outputs across multiple formats. Improved the processing of datum and script information within these structures, reducing edge-case failures and minimizing production risk. Leveraged skills in CBOR, Protocol Buffers, and data serialization to deliver a robust decoder suite that simplifies future enhancements and ensures reliable handling of transaction data, contributing to a more extensible and maintainable codebase overall.