These are 5 very brief samples demonstrating basic Entities API usage:

1. MainThread: A system rotates a single cube entity on the main thread.
2. IJobEntity: The cube is rotated by an IJobEntity.
3. Aspects: The cube is moved up and down using an aspect.
4. Prefabs: Multiple cubes are spawned from a prefab entity.
5. IJobChunk: The cube is rotated in an IJobChunk.