Worked on codebase maintenance for the conjure-cp/conjure-oxide repository, focusing on streamlining the project by removing the unused Kissat solver integration. This involved deleting obsolete files, dependencies, test suites, and solver adaptor implementations, resulting in a cleaner and more maintainable codebase. The approach centered on disciplined code refactoring and careful dependency management, ensuring that the build system configuration remained robust while reducing potential maintenance risks. Using Rust, the work improved onboarding and future development by narrowing the feature set and minimizing the regression surface, ultimately supporting faster iteration and safer releases through targeted repository hygiene and technical debt reduction.