Core Design Goals
The akdeb/open-toys project supplies an open-source framework for building conversational voice applications that execute entirely on the device.
Design priorities center on zero cloud dependency, no subscriptions, and no data leaving the user's home.
Supported Capabilities
The framework handles multilingual voice interaction across English variants, Chinese, Spanish, French, Japanese, Korean, Portuguese, German, and Italian plus additional languages and accents.
Voice cloning works from under ten seconds of reference audio, allowing custom robot personalities without external services.
Hardware and Runtime Targets
Hardware targets include ESP32-based custom builds for toys, companions, and robots.
The stack also runs fully locally on Mac hardware with no cloud required.
Safety Considerations
LLM and TTS outputs can include hallucinations or respond to adversarial prompts with inappropriate content.
The project documentation advises that AI should not replace direct human interaction, particularly with children, and recommends parental awareness during use.