# Core Bundle

The Core Bundle (opens new window) is the central bundle that needs to be installed in every API gateway and also is a dependency of every other API bundle.

# Configuration

Read more about the bundle configuration at Configure the Core Bundle (opens new window).

# Check-in

Check-in needs queued-tasks and locks. There are multiple backends to choose from (MySQL, Redis, ...) on how to persist data.

Read more about the configuration at Queued Tasks Configuration (opens new window) and Locks Configuration (opens new window).