Q: ​​Is Multi-tenancy like ability to configure multiple ROOT_URL for same Meteor app? Or having relative URLs?

A: Yes

https://www.youtube.com/watch?v=917v1a01-Ko

https://github.com/Meteor-Community-Packages/meteor-partitioner

Related:

- https://www.enterpriseready.io
- https://github.com/clinical-meteor/hipaa-audit-log