Plugin graphql-compose-sequilize (custom plugin documentation)

I love graphql-compose framework. We used it in an application using Mongo and our server code is very simple using this.

For a host or reasons, we are moving to SQL (RDBMS), so we want to use sequelize. Are there resources on developing a custom plugin or are there plans to add support to sequelize. If there is an existing effort, I would love to help as well.

I don't want to miss graphql-compose when we migrate from mongo