# Third-Party Notices
Hematite includes or derives from the following third-party works.
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## Kokoros (Rust Kokoro TTS)
**Original repository:** https://github.com/lucasjinreal/Kokoros
**Author:** Lucas Jin
**License:** Apache License 2.0
The vendored TTS library in `libs/kokoros/` is derived from the Kokoros project.
It has been substantially modified to integrate with Hematite's voice pipeline,
audio output model, and static linking requirements.
The original copyright notice is reproduced below as required by Apache 2.0:
> Copyright reserved by Lucas Jin under Apache License.
Full Apache 2.0 license text: https://www.apache.org/licenses/LICENSE-2.0
---
## Kokoro Model Weights
**Source:** https://huggingface.co/hexgrad/Kokoro-82M
**License:** Apache License 2.0
The Kokoro voice model weights (`kokoro-v1.0.onnx`, 311 MB) and voice styles
(`voices.bin`, 27 MB) are embedded directly into the Hematite binary at compile
time via `include_bytes!`. No separate download is required — voice works
out of the box with no additional setup.
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## SQLite (via rusqlite)
Used under the public domain / MIT-style blessing. No notice required, included
here for completeness.
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*All other dependencies are consumed as crates via Cargo and are governed by
their respective licenses, which can be reviewed via `cargo license` or at
https://crates.io.*