espocrm-base/application/Espo/Modules/Crm/Resources/metadata/app/jsLibs.json

{
    "full-calendar": {
        "path": "client/modules/crm/lib/fullcalendar.min.js",
        "exportsTo": "$",
        "exportsAs": "fullCalendar"
    },
    "vis": {
        "path": "client/modules/crm/lib/vis.min.js",
        "exportsAs": "vis",
        "noAppCache": true
    }
}