Creating a Next.js project

Set up a project and identify the files you will work in most often. In this lesson, you will focus on the relationship between the app directory, routes, and shared UI. The goal is not to memorize a checklist, but to understand the decision you are making and the trade-off behind it.

A useful way to study this topic is to connect it to something you have already seen. Notice what changes when the context changes: a choice that is sensible for a small experiment can become fragile when a project, team, or audience grows. Good practice comes from making that distinction deliberately.

How to approach it

Start with the real problem before reaching for a tool or pattern.
Use the relationship between the app directory, routes, and shared UI as a guide, then adjust it to the context in front of you.
Keep the first version small enough that you can review what changed and why.

A concrete example

Imagine explaining this choice to a teammate tomorrow. A strong explanation names the goal, the constraint, and the result you expect. If you cannot describe those three things clearly, pause and make the problem smaller before adding more complexity.

Key takeaways

KEY TAKEAWAYS

Creating a Next.js project is most useful when it supports a clear outcome.
the relationship between the app directory, routes, and shared UI becomes easier when the context is explicit.
Small, deliberate steps make it easier to spot mistakes early.
Apply the idea once in your own work before moving to the next lesson.

Reading material