Hoshi is an offline-first digital companion that grows alongside its user. More than just an AI chatbot, Hoshi is designed to feel alive through a custom behavior engine that simulates personality, emotions, memories, routines, and long-term growth. It learns from how you use your computer, develops its own preferences over time, and naturally reacts to your daily activities through expressive animations and interactions. AI enhances conversations and meaningful moments, but Hoshi's everyday life is powered by local systems, making it lightweight, private, and accessible even on modest hardware.