Worked on the clangenb/polkadot-sdk repository to migrate core pallets, specifically pallet-whitelist and pallet-tx-pause, to the umbrella frame crate. This involved consolidating frame and substrate dependencies, updating Cargo.toml and Cargo.lock files, and refactoring imports to align with the new modular structure. The migration reduced build complexity, improved dependency management, and shortened build times, while maintaining CI stability and addressing build breakages during the transition. Utilized Rust, Substrate, and advanced dependency management techniques to lay the groundwork for future modular pallet development and easier upgrades, ensuring the codebase remains maintainable and adaptable for ongoing feature expansion.