Build, validate and export the VCF Installer JSON specification for VCF 9.1.1 / 9.1 (VCF Management Services, License Server, Identity Broker) or VCF 9.0.x (Fleet Management and Collector appliances). Covers vCenter, NSX, ESX hosts, distributed switches, vSAN ESA/OSA, VMFS-FC and NFS principal storage, VCF Operations and VCF Automation. Every field is checked in real time against the official VCF Installer API schema plus the sizing and networking rules of the installer; existing specs can be imported, edited and exported again.