Conventions in the Next.js Supabase Turbo Starter Kit

Makerkit uses conventions to ensure consistency and readability in the codebase.

Below are some of the conventions used in the Next.js Supabase Turbo Starter Kit.

You're not required to follow these conventions: they're simply a standard set of practices used in the core kit. If you like them - I encourage you to keep these during your usage of the kit - so to have consistent code style that you and your teammates understand.

Turborepo Packages

In this project, we use Turborepo packages to define reusable code that can be shared across multiple applications.

  • Apps are used to define the main application, including routing, layout, and global styles.
  • Apps pass down configuration to the packages, and the packages provide the corresponding logic and components.

Creating Packages

Should you create a package for your app code?

  • Recommendation: Do not create a package for your app code unless you plan to reuse it across multiple applications or are experienced in writing library code.
  • If your application is not intended for reuse, keep all code in the app folder. This approach saves time and reduces complexity, both of which are beneficial for fast shipping.
  • Experienced developers: If you have the experience, feel free to create packages as needed.

Imports and Paths

When importing modules from packages or apps, use the following conventions:

  • From a package: Use @kit/package-name (e.g., @kit/ui, @kit/shared, etc.).
  • From an app: Use ~/ (e.g., ~/lib/components, ~/config, etc.).

Non-Route Folders

Non-route folders within the app directory are prefixed with an underscore (e.g., _components, _lib, etc.).

  • This prefix indicates that these folders are not routes but are used for shared components, utilities, etc.

Server Code

Files located in server folders are intended for server-side code only. They should not be used in client-side code.

  • This convention helps clarify where the code is meant to run, which is particularly important in Next.js where the distinction can be blurry.
  • For example, server-related code for a part of the app can be found in the _lib/server folder.
  • Include the server-only package at the top of the file to ensure it is not accidentally imported in client-side code.