September 2025 monthly summary for facebook/buck2-prelude focusing on Apple build diagnostics. Key feature delivered: extended-dsym-info subtarget added to the Apple build system to collect and output extended debug symbol information, borrowing logic from the existing apple_bundle target to enhance Apple debugging capabilities. No major bugs reported or fixed in this period for this repo. Overall impact: richer symbolication data and debug info improves issue triage, accelerates debugging, and aligns with existing Apple tooling. Technologies/skills demonstrated: build-system extension, cross-target logic reuse (apple_bundle), symbolication data collection, and integration with the Apple toolchain. Business value: faster issue reproduction and resolution for Apple builds, improved release readiness and developer productivity.

Monthly summary for 2025-08 focused on Buck2 Prelude work. Implemented an iOS debugging enhancement in facebook/buck2-prelude that automatically materializes the dwarf-and-dsym subtarget alongside dwp when running Apple tests with fdb. This guards against failures when the subtarget is missing and ensures breakpoints work reliably, reducing triage time for iOS tests. The change was implemented in commit bf9139ce4c77aaf900a187c22bf82afa37e21bc2. Impact: more robust iOS debugging, fewer flaky tests, smoother developer workflow. Technologies/skills demonstrated: Buck2 internals, fdb-based test execution, targeted subtarget materialization, clear commit messages.