Building a 5-in-1 App with Local LLM and Flutter

Introduction "I want to leverage AI without sending data to the cloud." The biggest strength of local LLMs is their ability to process local data without exposing it externally. I ran Nemotron using vLLM on a Desktop PC (RTX 5090) and integrated five functions into a single app with Flutter Web. Shift in Development Policy Initial Idea: General-Purpose AI Tools Initially, I planned to create five general-purpose tools, such as a secret diary AI and a password strength checker. However, the "unique value of local LLMs" felt diluted. Shift: Leveraging My Own Development Data I focused on my local Claude Code session history data. I switched to a concept where an LLM analyzes my development history. Five Functions Claude Code → Blog Post: Automatically generate technical articles from session history. Project Retrospective AI: Cross-analyze all sessions for a retrospective. Local File Q&A: Safely ask questions about confidential files. Code → Quiz Generation: Generate comprehension tests