Only public programs are available in the Explore section. By default, programs are private and only the program owner can change its visibility.
To check the visibility of a program, simply verify the icon in the program information: if a padlock with “Private” appears, the program is private. If a globe with “Public” appears, it is available on the Explore section and can be searched.
To change the visibility, go to your program. In the top banner, click on “View info”, then on “Modify”. In the “Visibility management” section, activate the “Make public” option.