Rapid manages packages using pnpm-workspaces and Turborepo. The structure of the monorepo is something like this:
  • apps
    • backend
    • demo
    • landing
  • packages
    • auth
    • db
    • ui
The packages/folders in the packages folder can we installed using pnpm like any package we install from the NPM repository. 
pnpm install @repo/ui --filter landing
Landing is the name of one of our NextJS apps in the /apps folder.
Read more about pnpm package commands here.
The apps/folders in the apps folder represent the individual apps that we have in the monorepo.

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What are packages?

Packages contain the code that can be shared between the apps in the /apps folder by just installing them with pnpm. Turborepo build dependencies makes using these packages super easy as you can add a build dependency of the package to the build/dev script of the app, so the packages are transpiled in real-time. For example: We share the TS-Rest contracts between apps i.e. the frontend and the backend. For this we use a shared package /packages/contract which is installed in both all the apps that we want. Now we can import any code from these packages like we do for any other package installed by NPM.

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Branding

The packages have a @repo prefix by default, you can change that to anything that you like. For example @rapid/db etc. To do this, just find and replace all instances of @repo to your desired name.
Adding a @ is encouraged as it helps with scoped packages. Learn More.