libjsoncpp1 1.7.4-3.1ubuntu2 (arm64 binary) in ubuntu focal

 jsoncpp is an implementation of a JSON reader and writer in C++. JSON
 (JavaScript Object Notation) is a lightweight data-interchange format
 that it is easy to parse and redeable for human. It is useful for
 building config files, network communications protocols, etc.
 .
 This library provides following features:
 .
 * High-level data structures for collecting data from JSON.
 * Easy-to-use reader and writer.