.

[upper moat]

no

in a custom json unmarshal you don't need to reimplement all of json

json.Decoder let you somewhat easily parse stuff

it handles syntax for you and you work with tokens

that hardcoded

[ivory geode]

type MyType map[string]any

func (m *MyType) UnmarshalJSON(...)...

[upper moat]

nah

use json.NewDecoder then you call .Token

you can also use json.Unmarshal and use extra logic to convert types after