On the Packagecloud blog, find the article that explains the internals of an APT repository. Identify the title of this article and list the first three command-line steps or commands mentioned for setting up an APT repository using 'reprepro', including any GPG key generation or directory creation commands.
Navigate to blog.packagecloud.io. Scroll down the page to browse articles until an article related to APT repository internals is found. Click on the article titled 'APT repository internals'. Scroll through the article to locate the section on 'Create an APT repository with reprepro'. Identify and extract the first three distinct command-line steps or commands mentioned in this section for setting up the repository.
The agent successfully navigates to blog.packagecloud.io. The agent identifies and clicks on the article titled 'APT repository internals'. The agent states the exact title of the article: 'APT repository internals'. The agent lists the following three distinct commands or steps from the article:
    1. `gpg --gen-key`
    2. `sudo apt-get install reprepro`
    3. `mkdir -p ~/apt-repo/conf`