I think it's time for a JSON version 2.
a) no mandatory quotes for dicts keys b) date and time intervals in iso 8601 format. c) optional type-specifiers for strings, so we can add e.g. ip4 and ip6 addresses. Eg. { remote: "127.0.0.1"#ip4 }
e.g. { guests: 42, arrival: @2020-02-17T17:22:45+00:00, duration: @@13:47:30 }