NestJS Multiple Organization RBAC Implementation

Hello I'm building an O2O service platform for local printing store, the backend is built on NestJS. there are users, merchants, vendors, jobs, documents, orders there are two types of merchants, platform & franchise. a merchant is a group of vendors, a vendor is a local store. job is the printing job with document and printing configuration. the requirements: 1. there are two roles for merchant, admin & manager. 2. there are two roles for vendor, manager & staff. currently they have same permissions. I need you are familiar with NestJS to implement by using the best practice in official docs. and using the tool OSO (declarative policy code) to implement the rbac. You don't need to participate the current code base. just using hello world or any boilerplate of NestJS to generate mock data/entities to implement features. reference link: OSO official site: [login to view URL] the blog post the implementing rbac by OSO with NestJS [login to view URL]