Implementation of an arkworks-rs curve base / scalar fields forked from v0.3.0. Arkworks-rs added curve25519 in v0.4.0 but introduced a large number of breaking changes to the API.
Zokrates currently depends on Arkworks v0.3.0 across the board. Upgrading is non-trivial due to some deeper dependencies in Arkworks for unmaintained repositories (ex).
Ideally longer term Zokrates will upgrade holistically to v0.4.0 to include the cleaner serialization APIs and improved naming conventions, but for now this hacky solution is workable.