In order to make AIOrchestra serialization/deserialization mechanism to be more robust, it is necessary to have a persistence model. In this repository you can find ORM models for AIOrchestra deployment context and its nodes entities.
To specify where to map ORM models, please change in alembic.ini next line from:
sqlalchemy.url = sqlite:////tmp/aiorchestra.sqlite
to exact location of a database to use with AIOrchestra persistence.