
Hai Su contributed to the google/nearby repository by engineering robust cross-platform connectivity and analytics features over 13 months. He developed and refined sharing protocols, multiplexed networking layers, and telemetry pipelines, focusing on reliability, observability, and modularity. Using C++ and Objective-C, Hai modernized the codebase for C++23 compliance, improved build system portability with Bazel, and enhanced diagnostics through detailed logging and error handling. His work included integrating Wi-Fi Direct and AWDL on Windows and iOS, expanding analytics coverage, and strengthening test infrastructure. These efforts resulted in a maintainable, performant platform that supports complex device interactions and data-driven product improvements.

October 2025: Delivered substantial enhancements to google/nearby focused on reliability, observability, and Windows interoperability. The work improves user value through more robust sharing, better diagnostics, and faster automated workflows.
October 2025: Delivered substantial enhancements to google/nearby focused on reliability, observability, and Windows interoperability. The work improves user value through more robust sharing, better diagnostics, and faster automated workflows.
September 2025: Delivered key enhancements to Nearby Sharing with cloud analytics and event logging, enabling QR code cloud sharing and cloud-based operations. Strengthened code quality and build resilience through testing infrastructure improvements and build system modernization for portability across Apple/Windows. These efforts improved observability, stability, and cross-platform deliverability, aligning with product reliability and developer velocity goals.
September 2025: Delivered key enhancements to Nearby Sharing with cloud analytics and event logging, enabling QR code cloud sharing and cloud-based operations. Strengthened code quality and build resilience through testing infrastructure improvements and build system modernization for portability across Apple/Windows. These efforts improved observability, stability, and cross-platform deliverability, aligning with product reliability and developer velocity goals.
Delivered critical upgrades to the Nearby networking stack in google/nearby (Aug 2025). Focused on reliability, observability, and cross-platform readiness, with major features in AWDL error handling, enhanced connection logging, WebRTC compatibility, expanded test coverage for Wi‑Fi Direct/P2P, and a hardened test infrastructure. These changes improve MTTR, enable deeper telemetry, and reduce production risk, while expanding Windows WebRTC support and overall code quality.
Delivered critical upgrades to the Nearby networking stack in google/nearby (Aug 2025). Focused on reliability, observability, and cross-platform readiness, with major features in AWDL error handling, enhanced connection logging, WebRTC compatibility, expanded test coverage for Wi‑Fi Direct/P2P, and a hardened test infrastructure. These changes improve MTTR, enable deeper telemetry, and reduce production risk, while expanding Windows WebRTC support and overall code quality.
July 2025 monthly summary for google/nearby: Focused on establishing analytics, build infrastructure, and groundwork for WebRTC. Delivered external sharing analytics capability via is_external field in SharingLog proto to enable analytics for external sharing targets, plus baseline WebRTC groundwork (build dependencies and headers) and Bazel build standardization across modules to enable C++ compilation and testing in internal and connections modules. Improved logging and error handling to unify logging usage and introduce AWDL-related error codes and robust null listener handling. These efforts lay the foundation for improved observability, faster release cycles, and new features around external sharing analytics and WebRTC.
July 2025 monthly summary for google/nearby: Focused on establishing analytics, build infrastructure, and groundwork for WebRTC. Delivered external sharing analytics capability via is_external field in SharingLog proto to enable analytics for external sharing targets, plus baseline WebRTC groundwork (build dependencies and headers) and Bazel build standardization across modules to enable C++ compilation and testing in internal and connections modules. Improved logging and error handling to unify logging usage and introduce AWDL-related error codes and robust null listener handling. These efforts lay the foundation for improved observability, faster release cycles, and new features around external sharing analytics and WebRTC.
June 2025 monthly summary for google/nearby highlighting the key business and technical outcomes achieved this month: streamlined initialization, safer build configuration, and more robust network hotspot behavior.
June 2025 monthly summary for google/nearby highlighting the key business and technical outcomes achieved this month: streamlined initialization, safer build configuration, and more robust network hotspot behavior.
In May 2025, delivered impactful features and reliability improvements for google/nearby, emphasizing performance visibility, device compatibility, network reliability, and CI hygiene. Key outcomes include sender-side attachment download time telemetry, WebRtcSocket namespace alignment, XR/Foldable device type support in QuickShare, a new advertisement throttling mechanism, and build warning suppression. A critical bug fix added hotspot SSID verification to ensure connections to the intended network. These changes enhance user experience through improved performance analysis, broaden device support, protect against data floods, and streamline CI processes, delivering measurable business value in reliability and developer efficiency.
In May 2025, delivered impactful features and reliability improvements for google/nearby, emphasizing performance visibility, device compatibility, network reliability, and CI hygiene. Key outcomes include sender-side attachment download time telemetry, WebRtcSocket namespace alignment, XR/Foldable device type support in QuickShare, a new advertisement throttling mechanism, and build warning suppression. A critical bug fix added hotspot SSID verification to ensure connections to the intended network. These changes enhance user experience through improved performance analysis, broaden device support, protect against data floods, and streamline CI processes, delivering measurable business value in reliability and developer efficiency.
In April 2025, the Nearby project achieved foundational AWDL integration, enhanced diagnostics, WebRTC migration, and reliability improvements, advancing connectivity among devices and strengthening deployment readiness. The work delivered cross-stack AWDL support, clearer disconnection analytics, and improved stability under heavier usage, while preparing XCFramework packaging and future LDT integration for ecosystem partners.
In April 2025, the Nearby project achieved foundational AWDL integration, enhanced diagnostics, WebRTC migration, and reliability improvements, advancing connectivity among devices and strengthening deployment readiness. The work delivered cross-stack AWDL support, clearer disconnection analytics, and improved stability under heavier usage, while preparing XCFramework packaging and future LDT integration for ecosystem partners.
March 2025 (Month: 2025-03) was focused on expanding Nearby’s platform reach, enriching analytics, and improving partner integration through cross-language capabilities and new communication mediums. The work directly supports business goals of deeper usage insights, smoother onboarding of partners, and broader device compatibility.
March 2025 (Month: 2025-03) was focused on expanding Nearby’s platform reach, enriching analytics, and improving partner integration through cross-language capabilities and new communication mediums. The work directly supports business goals of deeper usage insights, smoother onboarding of partners, and broader device compatibility.
February 2025 monthly summary for google/nearby focusing on delivering business value through reliability, telemetry, and modular modernization. Key features delivered and major improvements: - Code modernization across analytics, multiplexing, and Wi-Fi to align with C++23 (removed std::aligned_storage; introduced alignas and raw arrays for safe object placement). - Build system cleanup with visibility adjustments to internal/test and sharing-related subpackages, improving modular boundaries and reducing maintenance overhead. - HaTS analytics linkage: added event type and logging to correlate HaTS survey sessions with Quick Share flows for more actionable analytics. - Telemetry enhancements: introduced InstantConnectionResult enum and logging to capture connection outcomes; expanded sender/flow visibility for better telemetry. - Media and sharing controls: added Medium enum and overloads to Advertiser and Discoverer to selectively enable Bluetooth, Wi-Fi, etc.; introduced Nearby Share redirection sharing with a new SharingUseCase and deprecated standalone QR code sharing. - iOS reliability improvements: enhanced BLE discovery logs with human-readable representations; fixed GATT server endpoint information and offset handling for iOS to ensure proper advertising and reads. Overall impact and business value: - Reduced technical debt and aligned codebase with modern C++ standards, enabling longer-term maintainability. - Improved telemetry fidelity and analytics coverage, enabling data-driven decisions around user flows and network performance. - Greater flexibility and control over media pathways (Bluetooth/Wi‑Fi) and sharing UX, facilitating faster feature experimentation and safer rollouts. - Higher reliability and debuggability on iOS devices, reducing incident triage time. Technologies/skills demonstrated: - C++23 modernization techniques and safe object placement strategies. - Build system analysis and dependency visibility tuning (BUILD files). - Telemetry design and data modeling (HaTS integration, InstantConnectionResult). - Feature flagging and enum-driven API evolution (Medium, SharingUseCase). - iOS BLE and GATT protocol reliability work.
February 2025 monthly summary for google/nearby focusing on delivering business value through reliability, telemetry, and modular modernization. Key features delivered and major improvements: - Code modernization across analytics, multiplexing, and Wi-Fi to align with C++23 (removed std::aligned_storage; introduced alignas and raw arrays for safe object placement). - Build system cleanup with visibility adjustments to internal/test and sharing-related subpackages, improving modular boundaries and reducing maintenance overhead. - HaTS analytics linkage: added event type and logging to correlate HaTS survey sessions with Quick Share flows for more actionable analytics. - Telemetry enhancements: introduced InstantConnectionResult enum and logging to capture connection outcomes; expanded sender/flow visibility for better telemetry. - Media and sharing controls: added Medium enum and overloads to Advertiser and Discoverer to selectively enable Bluetooth, Wi-Fi, etc.; introduced Nearby Share redirection sharing with a new SharingUseCase and deprecated standalone QR code sharing. - iOS reliability improvements: enhanced BLE discovery logs with human-readable representations; fixed GATT server endpoint information and offset handling for iOS to ensure proper advertising and reads. Overall impact and business value: - Reduced technical debt and aligned codebase with modern C++ standards, enabling longer-term maintainability. - Improved telemetry fidelity and analytics coverage, enabling data-driven decisions around user flows and network performance. - Greater flexibility and control over media pathways (Bluetooth/Wi‑Fi) and sharing UX, facilitating faster feature experimentation and safer rollouts. - Higher reliability and debuggability on iOS devices, reducing incident triage time. Technologies/skills demonstrated: - C++23 modernization techniques and safe object placement strategies. - Build system analysis and dependency visibility tuning (BUILD files). - Telemetry design and data modeling (HaTS integration, InstantConnectionResult). - Feature flagging and enum-driven API evolution (Medium, SharingUseCase). - iOS BLE and GATT protocol reliability work.
January 2025 monthly summary for google/nearby: Focused on delivering core stability and configurable multiplexing features, with targeted bug fixes and code hygiene improvements that enhance reliability and future extensibility. The work emphasizes business value through robust cross-language consistency, improved streaming reliability under multiplexing, and configurable multiplexing controls for better resource usage and performance.
January 2025 monthly summary for google/nearby: Focused on delivering core stability and configurable multiplexing features, with targeted bug fixes and code hygiene improvements that enhance reliability and future extensibility. The work emphasizes business value through robust cross-language consistency, improved streaming reliability under multiplexing, and configurable multiplexing controls for better resource usage and performance.
December 2024 monthly summary for google/nearby: Delivered four key changes focused on performance, data quality, and maintenance. Upgraded Protobuf/Bazel dependencies, deprecated opt-in analytics fields to refine data collection, enhanced BlockingQueueStream with multi-frame reads for better streaming efficiency, and cleaned up Windows-specific subpackages to simplify maintenance. These changes improve runtime performance, analytics accuracy, and cross-platform maintainability, while demonstrating proficiency in Protobuf/Bazel tooling, streaming architecture, and automated code changes.
December 2024 monthly summary for google/nearby: Delivered four key changes focused on performance, data quality, and maintenance. Upgraded Protobuf/Bazel dependencies, deprecated opt-in analytics fields to refine data collection, enhanced BlockingQueueStream with multi-frame reads for better streaming efficiency, and cleaned up Windows-specific subpackages to simplify maintenance. These changes improve runtime performance, analytics accuracy, and cross-platform maintainability, while demonstrating proficiency in Protobuf/Bazel tooling, streaming architecture, and automated code changes.
November 2024 monthly summary for google/nearby focusing on connectivity reliability, feature flag governance, and build/maintenance improvements. Delivered key features and targeted bug fixes that enhance performance, privacy/compliance, and CI reliability, enabling smoother user experiences and more controllable feature rollouts.
November 2024 monthly summary for google/nearby focusing on connectivity reliability, feature flag governance, and build/maintenance improvements. Delivered key features and targeted bug fixes that enhance performance, privacy/compliance, and CI reliability, enabling smoother user experiences and more controllable feature rollouts.
Concise monthly summary for 2024-10 covering the google/nearby repository. Highlights include key features delivered, major bugs fixed, overall impact, and technologies demonstrated, focused on business value and technical achievement.
Concise monthly summary for 2024-10 covering the google/nearby repository. Highlights include key features delivered, major bugs fixed, overall impact, and technologies demonstrated, focused on business value and technical achievement.
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