Ready Callback for Asynchronous Task Coordination

ready-callback is a utility library designed to manage the readiness of a server or application after a series of asynchronous tasks have completed. It's particularly useful in scenarios where a server needs to wait for database connections, external service initializations, or other long-running setup processes before it can start accepting requests. The current stable version is 4.0.0, released in October 2023. This package has a moderate release cadence, with major versions aligning with Node.js LTS updates. Key differentiators include its simple callback-based API for registering tasks, robust error handling with optional 'weak' dependencies, and configurable timeouts for individual tasks or the overall ready process. It also provides status updates during task completion. Originally used heavily within the Egg.js framework ecosystem, it offers a pragmatic solution for orchestrating application startup sequences.