ferralk is independently developed and dual-licensed under the MIT License
(LICENSE-MIT) or the Apache License, Version 2.0 (LICENSE-APACHE), at your
option. Its matcher and walker design is inspired by zlob v1.6.3.
The compatibility reference is zlob v1.6.3, maintained at
https://github.com/dmtrKovalenko/zlob, at commit
4bc4da2cbc823d3911b4a1436448687c398977dd.
Copyright (c) 2026 Dmitriy Kovalenko
zlob is MIT-licensed. No zlob source code has been copied into this repository
at this point. When a zlob module or test is ported, its original copyright and
MIT license notice must be preserved in the ported file and recorded in its
provenance header.