Feasibility and Usability Practice on Local Hosting Open Source Large Language Models (LLMs) Including Llama 3.2 Vision 90B in Multi-Functional Agentic Artificial Intelligence (AI) System to Drive Service for Design in the Latest Affordable Small Personal Computer (PC) System. - Zhen Liu; Qixu Wang; Hao Lu; Yifang Wang 014 (HCI (34), 2025)