During March 2025, Daniel Brans developed a modular sample-controllers package within the MetaMask/core repository, focusing on code organization and package management using JavaScript and TypeScript. He refactored and consolidated existing controllers and services into the new @metamask/sample-controllers package, enabling their reuse across multiple sample codebases and reducing duplication. Daniel updated documentation, changelogs, and Jest configurations to support the new structure, streamlining developer onboarding and integration. The work emphasized maintainability and architectural clarity, laying a foundation for accelerated future development and demos. No bug fixes were required, as the primary focus was on improving codebase modularity and reuse.