[
    {
        "check": "Xvfb", 
        "checker": "binary", 
        "name": "Xvfb"
    }, 
    {
        "check": "pkg-config", 
        "checker": "binary", 
        "name": "pkg-config"
    }, 
    {
        "check": "xdpyinfo", 
        "checker": "binary", 
        "name": "xdpyinfo"
    }
]