moyo: A fast and robust crystal symmetry finder, written in Rust.

moyo is an open-source, Rust-based library for crystal symmetry analysis extending spglib. It computes symmetry operations, space-group and site-symmetry information, and standardized unit cells from crystal structures, including magnetic space groups. The implementation emphasizes performance and robustness, providing significantly faster and more stable symmetry detection under practical tolerances. Python, C, and WebAssembly interfaces are provided. This record archives a specific released version for citation; development is maintained on GitHub, https://github.com/spglib/moyo.