Disabling property

Enabled if interface:

 enabledIf?: { $eval: string; dependencies: string[]; }

Inside $eval you can write your own JS code, that must return true, false or undefined. If it returns true, prop is enabled.

{
  "schema": {
    "type": "object",
    "properties": {
      "numberInput": {
        "type": "integer",
        "enabledIf": "return false",
        "title": "You can't change me!"
      }
    }
  }
}