Packvium Makes Cartonization Checkable

Why it surfaced

Packvium puts constraints directly into the search, uses exact integer geometry, and has an independent validator recompute the returned result. It also explains why an item was refused, making this a rare packing tool that treats its answer as evidence rather than magic.

An MIT-licensed 3D cartonization and bin-packing engine for Python, PHP, Rust, and the browser.