You could, KiCad does this (uses a text-based LISP-like format): it's not at all human-creatable and results in huge output. The difference is that OpenSCAD/Ca

You could, KiCad does this (uses a text-based LISP-like format): it's not at all human-creatable and results in huge output. The difference is that OpenSCAD/CadQuery are dense logic formats (code) rather than just serialization formats. Large amounts of human intent are encoded in the order of evaluation, function calls, etc.