feos-derive is part of the FeOs project.

FeOs - A Framework for Equations of State and Classical Density Functional Theory

The feos-derive crate contains macros that provide boilerplate for the implementation of several traits from feos-core and feos-dft for the FFI conform enums in feos. With these macros, new equations of state and functionals can be added straightforwardly to the Python interface or other FFIs.