ynh-dev/custom-catalog/apps.json.example

{
    "0testapp": {
        "antifeatures": [
            "non-free-assets"
        ],
        "branch": "master",
        "category": "games",
        "level": 8,
        "potential_alternative_to": [
            "Google Agenda",
            "Microsoft Outlook"
        ],
        "state": "working"
    }
}