fqapp
Content-aggregation Android client (novels, short dramas, comics, audiobooks): Flutter UI + in-process Rust core, on-device signing/decryption/caching, no servers, no root.
ch6vip
Open Source Software Developer — Android, Flutter & Rust
Flutter / Dart
Rust
Kotlin / Android
Go
C++
TypeScript
Reverse Engineering
Cloudflare Workers
About
I'm a software developer who builds and maintains open source projects, mostly around Android. My main project is fqapp, a content-aggregation Android client written in Flutter with an in-process Rust core that handles request signing, decryption and caching entirely on-device — no backend servers. I also maintain an LSPosed module for Bilibili, and a set of Go / C++ reimplementations of third-party APIs (gateway signing, transport encoding, AES content decryption) written for interoperability research.
Day to day I work with Flutter and Dart for UI, Rust and Kotlin for native and core logic, and Go or TypeScript for tooling and edge services. Everything I ship is open source, mostly under GPL-3.0.
Open Source Projects
lsposed-bili-sponsorblock
LSPosed module that skips sponsor segments in the Bilibili Android app using SponsorBlock community data.
qmapi
A clean-room Go reimplementation of the Qimao novel API (v8.9): gateway request signing, transport encoding and AES body decryption.
fqapi-cpp
Native C++20 rewrite of the fqapi service with API compatibility, a web UI, device pooling and media processing.
cloudflare-doh-ecs
DNS-over-HTTPS resolver with EDNS Client Subnet support, built on Cloudflare Workers.
fqdrama-cpp
Drama-focused fork of fqapi-cpp: search, catalog, playback and CENC streaming decryption.
Contact
The best way to reach me is through GitHub — issues and discussions on the project repositories — or by email at ch6vip@gmail.com.