YOY AI AGENT — THIRD-PARTY SOFTWARE NOTICES ────────────────────────────────────────────────────────────────────────────── Product: YOY AI Agent Publisher: YOY AI Limited Address: Rm 819, 8/F Peninsula Centre, 67 Mody Road, TST East, Kowloon, Hong Kong SAR Contact: info@yoyai.io Website: https://yoyai.io/licenses This file lists the third-party software components distributed with, or used by, the YOY AI Agent desktop application, together with their licence terms. YOY AI Limited acknowledges and thanks the open-source community. YOY's own source code is proprietary and is not licensed under any of the licences below. ────────────────────────────────────────────────────────────────────────────── 1. THE YOY APPLICATION (PROPRIETARY) ────────────────────────────────────────────────────────────────────────────── The YOY AI Agent application — including its agent engine, tool executor, DCI memory system, user interface, routing and orchestration logic — is proprietary software owned by YOY AI Limited. Licence: All rights reserved (UNLICENSED) Trademarks: YOY, YOY AI, YOY AI Agent, You Own Your AI Nothing in this document grants any licence to YOY's proprietary code. ────────────────────────────────────────────────────────────────────────────── 2. BUNDLED OPEN-SOURCE COMPONENTS ────────────────────────────────────────────────────────────────────────────── The following components are distributed together with the application. Components marked COPYLEFT are distributed as separate, dynamically linked libraries and are made available under their own licences. • Electron (34.4.0) Licence: MIT Bundled: app runtime Chromium-based application runtime • Chromium (embedded) (M132) Licence: BSD-3-Clause Bundled: app runtime HTML rendering engine shipped inside Electron • Node.js (embedded) (20.x) Licence: MIT Bundled: app runtime JavaScript runtime shipped inside Electron • FFmpeg (libffmpeg) (shipped with Electron) Licence: LGPL-2.1-or-later Bundled: app runtime Audio/video codec library included in the Electron binary distribution • whisper.cpp (bundled binaries) Licence: MIT Bundled: resources/whisper/{mac-arm64,mac-x64,win-x64} Speech-to-text engine (on-device) • OpenAI Whisper models (ggml) (medium, small) Licence: MIT Bundled: resources/whisper/models On-device speech recognition model weights • Piper TTS (bundled binaries) Licence: MIT Bundled: resources/piper/win-x64/piper Neural text-to-speech engine (on-device) • Piper voice models (rhasspy/piper-voices) (v1.0.0) Licence: MIT / Apache-2.0 Bundled: resources/piper/voices Multilingual on-device voice models • espeak-ng (bundled (espeak-ng.dll + espeak-ng-data)) Licence: GPL-3.0-or-later Bundled: resources/piper/win-x64/piper COPYLEFT: phonemisation library used by Piper. Distributed as a separate dynamically-linked library. • libtashkeel model (bundled) Licence: Apache-2.0 Bundled: resources/piper/win-x64/piper Arabic diacritisation model used by Piper • ONNX Runtime (C++) (bundled (onnxruntime.dll)) Licence: MIT Bundled: resources/piper/win-x64/piper + asarUnpack Inference engine for on-device neural models • Kokoro TTS (kokoro-onnx / hexgrad) (v1.0 int8) Licence: Apache-2.0 Bundled: resources/kokoro On-device high-quality TTS model (downloaded at build/first-run) • libvips (via sharp / @img/sharp-libvips-*) (1.2.4) Licence: LGPL-3.0-or-later Bundled: asarUnpack: node_modules/@img/** COPYLEFT: image processing library. Distributed as a separate dynamically-linked library. • LanceDB (@lancedb/lancedb) (0.27.2) Licence: Apache-2.0 Bundled: asarUnpack: node_modules/@lancedb/** Embedded vector database for on-device memory • Hugging Face Transformers.js (3.8.1) Licence: Apache-2.0 Bundled: asarUnpack: node_modules/@huggingface/** On-device ML model runner (BGE-M3 embeddings) • BGE-M3 embedding model (ONNX) Licence: MIT Bundled: downloaded on first run Local multilingual embedding model (1024-dim) • nuT (nut.js) (5.2.0) Licence: Apache-2.0 Bundled: asarUnpack: node_modules/@nut-tree/** Desktop automation (mouse/keyboard/screen) • a11y-helper (bundled) Licence: MIT Bundled: resources/a11y-helper Accessibility tree reader for app control ────────────────────────────────────────────────────────────────────────────── 3. RUNTIME LIBRARIES (41 npm packages) ────────────────────────────────────────────────────────────────────────────── The following JavaScript libraries are required at runtime. Package Version Licence ──────────────────────────────────────────────────────────────────── @ai-sdk/anthropic 3.0.64 Apache-2.0 @ai-sdk/google 3.0.53 Apache-2.0 @ai-sdk/openai 3.0.48 Apache-2.0 @huggingface/transformers 3.8.1 Apache-2.0 @lancedb/lancedb 0.27.2 Apache-2.0 @larksuiteoapi/node-sdk 1.73.0 MIT @mozilla/readability 0.6.0 Apache-2.0 @nut-tree/nut-js 5.2.0 Apache-2.0 @wecom/aibot-node-sdk 1.0.7 MIT acorn 8.16.0 MIT ai 6.0.141 Apache-2.0 apache-arrow 18.1.0 Apache-2.0 axios 1.19.0 MIT canvas 3.2.3 MIT chart.js 4.5.1 MIT chartjs-node-canvas 5.0.0 MIT chrome-remote-interface 0.34.0 MIT dingtalk-stream v2.1.6-beta.1 MIT electron-updater 6.8.3 MIT exif-parser 0.1.12 SEE PACKAGE fflate 0.8.2 MIT form-data 4.0.6 MIT google-auth-library 10.6.2 Apache-2.0 googleapis 144.0.0 Apache-2.0 imapflow 1.3.2 MIT jsdom 29.1.1 MIT jszip 3.10.1 MIT (YOY elects MIT) mailparser 3.9.8 MIT node-fetch 3.3.2 MIT nodemailer 7.0.13 MIT-0 pdf-lib 1.17.1 MIT pdf-parse 1.1.1 MIT pdfjs-dist 2.16.105 Apache-2.0 qrcode 1.5.4 MIT sharp 0.34.5 Apache-2.0 tesseract.js 5.1.1 Apache-2.0 turndown 7.2.4 MIT turndown-plugin-gfm 1.0.2 MIT ws 8.20.0 MIT xlsx 0.18.5 Apache-2.0 zod 4.3.6 MIT ────────────────────────────────────────────────────────────────────────────── 4. ON-DEVICE AI MODELS ────────────────────────────────────────────────────────────────────────────── YOY runs these models locally on the user's own computer. No user data is transmitted to the model authors. • Whisper speech recognition models (MIT) — OpenAI • BGE-M3 multilingual embedding model (MIT) — BAAI • Kokoro TTS voice model (Apache-2.0) — hexgrad • Piper voice models (MIT / Apache-2.0) — rhasspy / piper-voices • tashkeel Arabic diacritisation model (Apache-2.0) ────────────────────────────────────────────────────────────────────────────── 5. OPTIONAL EXTERNAL TOOLS (NOT BUNDLED) ────────────────────────────────────────────────────────────────────────────── YOY can optionally use tools that the user installs separately. These programs are NOT included in the YOY installer and are NOT distributed by YOY AI Limited. Users who install them do so under those programs' own licence terms. • Ollama — MIT Optional local LLM runtime — installed separately by the user • LibreOffice — MPL-2.0 Optional document conversion — installed separately by the user • Mermaid CLI — MIT Optional diagram renderer — installed separately by the user • draw.io Desktop — Apache-2.0 Optional diagram editor — installed separately by the user • Blender — GPL-3.0-or-later Optional 3D tool — installed separately by the user. NOT bundled. • OBS Studio — GPL-2.0-or-later Optional recorder — installed separately by the user. NOT bundled. • Audacity — GPL-2.0-or-later Optional audio editor — installed separately by the user. NOT bundled. • GIMP — GPL-3.0-or-later Optional image editor — installed separately by the user. NOT bundled. • Inkscape — GPL-3.0-or-later Optional vector editor — installed separately by the user. NOT bundled. ────────────────────────────────────────────────────────────────────────────── 6. COPYLEFT (GPL / LGPL) COMPLIANCE — WRITTEN OFFER ────────────────────────────────────────────────────────────────────────────── The following copyleft components are distributed with YOY: • espeak-ng — GNU General Public License v3.0 or later • libvips (via sharp / @img) — GNU Lesser General Public License v3.0 or later • FFmpeg (Electron build) — GNU Lesser General Public License v2.1 or later Each is included as a SEPARATE, DYNAMICALLY LINKED library. YOY's own code does not link against them statically and does not incorporate their source. Their presence does not place YOY's proprietary code under a copyleft licence. YOY AI Limited hereby offers, for a period of three (3) years from the date of distribution, to provide the complete corresponding source code of these copyleft components to any third party who requests it. Requests: info@yoyai.io (subject: "Copyleft source request") Cost: Media and postage costs only (no charge for the source itself) Full licence texts: https://yoyai.io/licenses ────────────────────────────────────────────────────────────────────────────── 7. TRADEMARKS ────────────────────────────────────────────────────────────────────────────── YOY, YOY AI, YOY AI Agent and "You Own Your AI" are trademarks of YOY AI Limited, registered in Hong Kong SAR, Australia, the European Union and the People's Republic of China. All other trademarks referenced in this document or in the application belong to their respective owners and are used for identification only. ────────────────────────────────────────────────────────────────────────────── 8. COPYRIGHT NOTICES & INFRINGEMENT ────────────────────────────────────────────────────────────────────────────── Copyright (c) 2026 YOY AI Limited. All rights reserved. If you believe that material distributed with YOY infringes your copyright or other rights, please contact info@yoyai.io with: (a) identification of the work; (b) the location of the material; (c) your contact details; and (d) a statement of good-faith belief. YOY AI Limited will investigate promptly and act as required by law. YOY AI Limited reserves all rights and remedies available to it, including in the courts of Hong Kong SAR and any other competent jurisdiction, in respect of any unauthorised use of its software, trademarks or other intellectual property. ────────────────────────────────────────────────────────────────────────────── Generated by: scripts/gen-third-party-notices.js Document version: 1.0 ──────────────────────────────────────────────────────────────────────────────