$ show ReChronoRain/HyperCeiler
HyperCeiler is an Xposed/LSPosed module for Xiaomi HyperOS devices that hooks into system applications (SystemUI, Launcher, Settings, Camera, etc.) to unlock hidden features, disable ads/telemetry, and customize UI elements. The project is a multi-module Android application with a settings UI for toggling hundreds of individual hook rules. It uses a dual-layer architecture: Java/Kotlin hooks via EzHookTool and DexKit for dynamic method interception, and native C++ code for low-level inline patching of ARM64 binaries in system libraries. The codebase includes extensive mutation testing and regression harnesses that compile production source against frozen ROM snapshots and verify behavior via QEMU emulation. While highly specialized for Xiaomi's proprietary stack, the project demonstrates advanced reverse engineering skills and a robust testing methodology.
The LLM identified 4 files worth highlighting for reuse:
A centralized preference access layer that abstracts SharedPreferences for both the host app and Xposed hook processes. Provides static methods for boolean, int, string, and set retrieval with remote preference sync via Xposed service. Could be extracted as a standalone utility for any Xposed module needing cross-process preference sharing.
A C++ header providing overflow-safe arithmetic, bounded string comparison, and page-aligned memory helpers. Designed for use in native hook backends and memory patching. Self-contained and could be reused in any low-level Android native project requiring safe memory operations.
Implements a bounded exponential backoff retry policy for dock glass surface acquisition. Uses a state machine with configurable max retries and delay. The pattern is generic and could be extracted for any resource acquisition with transient failures.
A base class for confetti particles with acceleration, rotation, and lifecycle management. Part of a holiday weather effect system. The particle abstraction is clean and could be reused in any Android app needing a lightweight particle system.