Is there an easy way to replace JSON serializer?

[iwata]

I want to use github.com/goccy/go-json as JSON serializer.
I'd like to see an API to easily replace the serializer, like echo.
This is an example about echo.
https://github.com/fujiwara/isucon11-f/pull/9/files

[ikapo]

I would like to see this as well