Worked on the facebook/buck2-prelude repository to enhance build system compatibility with the upcoming Java 24 toolchain. Focused on build system configuration using Java, the developer introduced a new JavaVersion enum constant to recognize Java 24 toolchains and integrated this support into the fbcode configuration flow. This targeted update enables seamless end-to-end workflows for projects adopting Java 24, reducing migration risks and aligning the build system with the latest Java tooling roadmap. The work demonstrates a methodical approach to toolchain readiness, ensuring downstream projects can adopt new Java versions efficiently while maintaining robust build and configuration processes within the Buck2 ecosystem.