Ordered a new EV charger to replace my unreliable 1st-gen Zappi - went with the Victron EVC300400300. It was only $580 and has all its Modbus TCP registered documented via the manufacturer so I can muck around with it in EVCC.io/Home Assistant if I like. Works as a basic charger if I break any of the smart stuff. Doesn't have OCPP but I don't need it when Modbus is available.
https://www.victronenergy.com/ev-charging/ev-charging-station