Frank is a desktop assistant for League of Legends, built with Tauri (Rust) and Vue 3. It interacts with the League Client Update (LCU) API to provide features such as automatic match acceptance, champion pick/ban, rune recommendations, champion performance statistics, teammate analysis, and personal notes/blacklist management. The application consists of multiple windows: a main UI for home, rankings, runes, teammate analysis, and records; a background window that monitors game flow and auto-actions; an overlay for recent match details during gameplay; a match query window; and a post-game analysis window. It communicates with the LoL client via a custom Rust wrapper (shaco) that handles REST calls, WebSocket subscriptions, and the in-game API, and also fetches external data from Tencent CDN, lolfrank.cn, and a custom backend server for blacklist persistence. The architecture is modular, with separate Vue entry points for each window, Pinia state management, and a Rust backend that handles LCU integration, keyboard listening, window management, and system tray features. The code demonstrates significant reverse engineering of Riot's client APIs and game state management, packaged into a polished cross-platform desktop app.