jsone is an Erlang library for JSON encoding and decoding that implements RFC7159 compliance. The architecture consists of a main API module (jsone.erl) that delegates to specialized internal modules for decoding (jsone_decode.erl) and encoding (jsone_encode.erl), plus a utility module for IP address handling (jsone_inet.erl). The decoder uses continuation-passing style (CPS) for efficiency, enabling 'creation of sub binary delayed' optimization. The encoder provides extensive customization options including indentation, spacing, float formatting, datetime formatting, and canonical form generation. The library handles UTF-8 encoded binaries, supports multiple Erlang object formats (tuple, proplist, map), and provides both strict and lenient APIs for error handling. It has no external dependencies beyond standard OTP libraries and maintains active CI/CD workflows with regular OTP version testing.