Product Decisions This Supports

Enables reliable scaling of RoadRunner-based applications by providing a standardized solution for distributed locking, eliminating the need for custom race-condition mitigation code.
Supports strategic decisions to adopt RoadRunner as a high-performance PHP server by addressing critical concurrency challenges in long-running worker environments (e.g., queue processing, payment systems, or microservices).
Justifies "buy" over "build" for lock management due to minimal maintenance overhead, RoadRunner-specific optimization, and adherence to PHP’s execution model—reducing technical debt in concurrency-heavy features.
Use cases include shared resource access (e.g., database updates, cache invalidation) and multi-step transactions where data consistency is non-negotiable.

When to Consider This Package

When your application uses RoadRunner as the primary server and requires lightweight, low-latency distributed locking for long-running workers.
When you need a zero-external-dependency solution that integrates natively with RoadRunner’s architecture (e.g., no Redis or external services required).
When your team prioritizes simplicity and explicit critical sections over advanced features like lease expiration or distributed consensus.
Look elsewhere if: using non-RoadRunner environments (e.g., Swoole, traditional PHP-FPM), requiring complex lock semantics (e.g., time-bound leases), or if your workload has no concurrency risks (e.g., single-process apps).

Executives: "This package ensures our system handles high-traffic scenarios without data corruption or downtime—directly protecting revenue-critical operations like payments or inventory management. By leveraging RoadRunner’s built-in lock plugin through this minimal integration, we avoid costly custom solutions, reduce engineering overhead, and deliver more reliable customer experiences at scale."
Engineering: "It provides a battle-tested, zero-configuration mutex API tailored for RoadRunner workers—no more reinventing the wheel for concurrency. Just wrap