01Full-stack web application
DuskRain Food Map
A place for maps, reviews, and reliable ownership.
Built a map-based review application combining AMap / Google place data with local ratings, photos, and long-form reviews, including mobile views and an author workspace.
- Maintained record ownership through stable account IDs and distinct visitor, author, and administrator roles.
- Implemented invitations, activation, Argon2id password hashing, and OAuth binding with state / PKCE.
- Handled GCJ-02 and WGS84 coordinate differences; deployed with Docker and a reverse proxy.
Vue 3 · FastAPI · SQLite · OAuth · Docker
02Device tooling & communication
Codex OLED Status Display
Desktop task status, on a physical display.
Designed an RP2040-Zero / SH1106 OLED carrier board and firmware, with a Python bridge translating Codex Desktop events into display states, animations, and LED signals.
- Implemented device discovery, serial reconnection, and state retransmission, with Windows preview and distribution tooling.
- Restricted protocol fields to keep prompts, response text, and tool arguments out of the display channel.
Python · MicroPython · USB CDC · EasyEDA
03Desktop tooling & reliability
HoloCubic Hub
From serial communication to UI lifecycle.
Developed a Windows companion workbench for the HoloCubic / AIO ecosystem, integrating device configuration, status bridging, and firmware reliability patches.
- Fixed access to destroyed LVGL objects and the ordering of readiness and first-frame acknowledgments.
- Addressed stale Wi-Fi state and serial contention; added discovery, offline clock sync, and single-file distribution.
Contribution: companion tools, protocol integration, and firmware patches; upstream attribution retained.
ESP32 · Python · LVGL · PyInstaller
04Research workflows & runtime control
OpenClaw + Freqtrade
Connecting local experiments to controlled execution.
Built workflows around Freqtrade for cached data, dynamic universe selection, model training, candidate backtests, and configuration sync, with a Vue read-only dashboard and local GUI.
- Integrated Random Forest, HistGradientBoosting, and XGBoost for experiments using liquidity and market-state inputs.
- Checked strategy candidates against backtest and risk criteria before approval and runtime configuration sync.
Python · Vue 3 · Docker · XGBoost
05Research software engineering
DDAE Optimized
Making denoising experiments configurable.
Refactored existing DDAE research notebooks into CLI scripts, YAML configuration, and reusable data pipelines for supervised and field-data self-supervised / unsupervised training stages.
- Added epsilon stabilization, clipping, and an optional MSE anchor to correlation loss.
- Implemented trace-wise window extraction and overlap-add reconstruction, focusing on workflow engineering and numerical stability.
TensorFlow · NumPy · SciPy · CLI · YAML
06Service deployment & integration
Alpha Sentinel Local
Organizing data collection into a local service.
Integrated and deployed Alpha Sentinel locally with Docker Compose, FastAPI services, SQLite persistence, and an optional dashboard.
- Implemented periodic TokenList fetching, change detection, alert records, health checks, and status endpoints.
- Integrated pair metrics and candle views; the public repository includes the runtime architecture and partial source.
FastAPI · SQLite · Docker Compose · Streamlit