Allow MODX to have composer managed packages running Blend Migrations and using lci/console for cli commands.
Orchestrator is tool that allows developers to take full advantage of composer for your MODX Revolution 2.* development workflow. Orchestrator includes Blend. Blend allows you to create and run migrations. Migrations can be testable deployment scripts. Orchestrator also provides a way to install and require traditional MODX Extras via CLI commands and migrations.
Read the documentation