How I Built and Launched a 100% Offline AI Productivity Tracker (Tauri 2, Rust, and Llama 3.2)

After months of late-night coding, debugging, and wrestling with compiler errors, I finally reached a major milestone: I published my first-ever desktop application to the Microsoft Store. 🎉 The app is called Focus Stream. It tracks how you spend time on your PC and turns it into an AI-generated focus journal. The catch? It runs fully on-device. No accounts, no cloud database, and absolutely no telemetry. Window snapshots, activity timelines, and LLM inference all happen locally. In this post...