Build systems. Study deeply. Ship clearly.

Three local-first prototypes exploring API design, retrieval, scheduling, validation, and product-oriented interfaces.

• Python
• FastAPI
• System Design

C++ implementations and structured practice covering trees, graphs, dynamic programming, and string matching.

• C++
• Algorithms
• Problem Solving

An IoT distance measurement system with ultrasonic sensing, low-pass filtering, buzzer feedback, and a Wi-Fi display.

• Embedded C++
• ESP8266
• IoT

Uncertainty-aware bike-share demand forecasting and constrained station rebalancing decision support.

• Python
• FastAPI
• Time Series

A Flask dashboard for training, comparing, managing, and serving scikit-learn models through a REST API.

• Flask
• Scikit-learn
• REST API

A reproducible Kaggle regression pipeline with repeated CV, OOF ensembles, calibration, and MLflow experiment tracking.

• Python
• MLflow
• Ensemble Learning

A local-first daily planner combining scheduling algorithms, duration prediction, analytics, Docker, MySQL, and MLOps workflows.

• FastAPI
• TypeScript
• Docker

A deterministic multi-objective recommender with four retrieval routes, explainable ranking, constrained slate optimization, and shadow serving.

• Python
• FastAPI
• Recommender Systems

A seven-class research pipeline built around grouped validation, frozen holdout evaluation, counterfactual occlusion, and explicit deployment gates.

• Deep Learning
• Interpretability
• Validation

An evidence-driven engineering harness that turns recurring development events into lessons, ablation-tested rules, and reusable agent workflows.

• Shell
• Agent Workflows
• Evidence

A chibi desktop pet packaged for Codex and Clawd on Desk, with pixel-art animation states, mini mode, validation artifacts, and a portable theme.

• Pixel Art
• Desktop Pet
• Animation

Browse the complete repository archive, including machine learning, deep learning, data analysis, scraping, APIs, and ongoing experiments.

• Repositories
• Learning
• Experiments