Jarkko Sakkinen worked on the clangenb/polkadot-sdk repository, focusing on standardizing the Polkavm RISC-V target within the wasm-builder component. He implemented a new build configuration using Rust and WebAssembly, aligning dependencies and workflows to support the riscv32emac-unknown-none-polkavm target. This technical approach streamlined the RISC-V build process, reducing setup complexity and minimizing build failures across environments. Jarkko’s work demonstrated strong proficiency in build systems and careful dependency management, establishing a more maintainable and future-proof integration path for Polkavm. The depth of the changes laid a solid foundation for improved cross-target compatibility and easier onboarding in future development cycles.