op-packages/luci-app-powersupply/root/usr/share/luci/menu.d/luci-app-powersupply.json

{
        "admin/services/powersupply": {
                "title": "PowerSupply",
                "order": 50,
                "action": {
                        "type": "view",
                        "path": "powersupply/powersupply"
                },
                "depends": {
                        "acl": [ "luci-app-powersupply" ],
                        "uci": { "powersupply": true }
                }
        }
}