> ## Documentation Index
> Fetch the complete documentation index at: https://docs.codecrafters.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Pre-launching your challenge

> Details on pre-launching your challenge.

Once you've [planned your challenge](/contributors/authoring-challenges/planning-your-challenge), you're ready to start adding enough information to
create the "overview" page.

We'll use this page to pre-launch your challenge and start attracting early users who'll help test your challenge & share feedback.

[Paul](mailto:paul@codecrafters.io) will create a draft challenge for you and grant you access to it.

At the start, the overview page for the challenge will look something like this:

<Frame>
  <img className="w-full" src="https://mintcdn.com/codecrafters/qGKwe-_AIUAS3RUS/img/draft-challenge-overview.png?fit=max&auto=format&n=qGKwe-_AIUAS3RUS&q=85&s=1844b3032e6c5b6f5fbbd2f5f8c03e11" width="2070" height="1300" data-path="img/draft-challenge-overview.png" />
</Frame>

This page is generated from contents in `course-definition.yml`, which you'll find in your course's repository:

<Frame>
  <img className="w-full" src="https://mintcdn.com/codecrafters/qGKwe-_AIUAS3RUS/img/draft-challenge-yaml.png?fit=max&auto=format&n=qGKwe-_AIUAS3RUS&q=85&s=453531bbbb74d11d355772e58845d109" width="2200" height="1506" data-path="img/draft-challenge-yaml.png" />
</Frame>

View [Course Definition Reference](/contributors/authoring-challenges/course-definition-reference) for a description of all the fields in `course-definition.yml`.

You can edit this file to fill in the relevant information. Once the changes are merged into `main`, you can go to your course's admin page to "apply" the changes.

Your course's admin page is located at `https://app.codecrafters.io/courses/<slug>/admin/updates`.

<Frame>
  <img className="w-full" src="https://mintcdn.com/codecrafters/qGKwe-_AIUAS3RUS/img/course-definition-updates-list.png?fit=max&auto=format&n=qGKwe-_AIUAS3RUS&q=85&s=629e8e4dc9cdca6f8e11148cd76fa512" width="3098" height="740" data-path="img/course-definition-updates-list.png" />
</Frame>

Once applied, your changes should be reflected on the overview page. You can continuously tweak these details until you're happy with them.

***

Let Paul know once you're happy with the overview page for your course. You can now move on to [building your challenge](/contributors/authoring-challenges/building-your-challenge).