Worked on the wireapp/core-crypto repository to implement a builder pattern for the MlsCryptoProvider, focusing on safer and more ergonomic object initialization. This involved integrating the typed-builder crate and refactoring the provider’s construction process to use the builder approach, which standardizes how objects are created and prepares the codebase for future API improvements. The work centered on Rust, leveraging skills in dependency management and refactoring to streamline initialization logic. No bug fixes were recorded during this period, with efforts concentrated on enhancing maintainability and usability of the crypto module through improved construction patterns and dependency integration.