PHP 8.1 introduced Fibers, and SQLite 3.38.0 added built-in json_tree support. What happens when you combine these two technologies with a custom PDO function? You get a quite exotic, yet efficient method for data processing with minimal memory overhead.
The standard json_decode in PHP works great until you encounter megabyte-sized files.
Streaming parsers exist, but they are often slower and more complex to use. Our approach is a "golden middle": simpler than streaming, yet more economical than json_decode.