Local MongoDB Replica Set Runner

run-rs is a zero-configuration command-line utility designed for spinning up a local MongoDB replica set quickly for development and testing purposes. It eliminates the need for manual MongoDB installations by downloading and managing the MongoDB binaries itself, functioning as a completely self-contained solution. The current stable version is 0.7.7. While there isn't a specified release cadence, the project appears actively maintained with support for various MongoDB versions. A key differentiator is its 'batteries-included' approach, providing a functional replica set with a single command, automatically clearing database data by default for fresh test runs. It supports Linux, macOS, and Windows 10 (via Git Bash/PowerShell).