src/recovery/system/meta/system_recovery.cmx

{
    "program": {
        "binary": "bin/system_recovery"
    },
    "sandbox": {
        "dev": [
            "class/display-controller",
            "class/input"
        ],
        "services": [
            "fuchsia.net.SocketProvider",
            "fuchsia.process.Launcher"
        ]
    }
}