Yet another JSON package for Julia; this one is for speed and slick struct mapping
TL;DR
# builtin reading/writing
JSON3.read(json_string)
JSON3.write(x)
# custom types
JSON3.read(json_string, T; kw...)
JSON3.write(x)
# custom types: incrementally update a mutable struct
x = T()
JSON3.read!(json_string, x; kw...)
JSON3.write(x)