ONO is an Android Xposed module that modifies and enhances the QQ messaging application (Tencent). It provides a broad set of features including custom sticker panels, message encryption, anti-revoke, developer tools (packet inspection, cookie retrieval), UI tweaks (bubble redirect, profile card menu), and entertainment hooks (fake group owner, sport step spoofing). The module supports both legacy Xposed (API 51–99) and modern LSPosed (libxposed API 100) frameworks, with a dual-entry architecture that unifies startup through a shared `UnifiedEntryPoint` and `StartupRoutine`. Internally, it uses a sophisticated hook item framework based on annotations and a KSP annotation processor to automatically register hook classes. The codebase is heavily reliant on reflection and reverse-engineering of QQ's internal classes, making it tightly coupled to specific QQ versions, but the core utilities (reflection helpers, configuration management, protocol building) are well-crafted and potentially reusable in other Android hooking projects. The project is actively maintained with frequent commits, responsive issue triage, and a comprehensive build system using Gradle convention plugins.