Package responsibilities

This page should answer the question: Which implementation belongs into which package of the monorepo? Currently, we have the following packages:

• app
• docs
• lib
• types
• eslint-config
• prettier-config

The challenge is to maintain separation of concerns for each package. The following sections list the responsibilities of each package.

app

• the main application that consumes the lib, eslint-config, prettier-config & types package
• Next.js pages that import components from lib and types from types
• ESLint and Prettier apply the shared configuration from eslint-config and prettier-config
• API implementation
• application state
• routing (via Next.js App Router (opens in a new tab))
• error logging (via Sentry (opens in a new tab))
• E2E tests (via Playwright (opens in a new tab))
• unit tests (via Vitest (opens in a new tab))

docs (this)

• documentation for the whole Essencium project
• getting started
• architecture
• development guide
• style guide

lib

• single Next.js components
• specific hooks
• specific utility functions

types

• shared types ('shared' means types that are used in app and lib together)
• zod schemas

eslint-config

• exports a ESLint config that is consumed by the other packages
• is published as a npm package

prettier-config

• exports a Prettier config that is consumed by the other packages
• is published as a npm package