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teddy8023mars/README.md

Teddy's Studio β€” an interactive 3D portfolio

🐈 Walk around my studio β†’

It's a real 3D room. Click things. The cat watches your cursor. (In a hurry? There's a "Text version" button.)

Hi, I'm Teddy (Ziyu C.)

I build real tools with AI agents β€” macOS apps, trading systems, and full-stack platforms. Based in Singapore.

Agents aren't a demo topic for me; they're the workshop. Every project below ships with CLAUDE.md / AGENTS.md and was built through spec β†’ TDD β†’ independent adversarial review loops.

Projects

Project What it is Stack
πŸ“ QuickMD Native macOS Markdown previewer β€” double-click a .md, get instant GFM + Mermaid + LaTeX Swift Β· AppKit
🧸 DeskCat 3D companion on your desktop; its head follows your mouse. Procedural SDF-modeled teddy bear, no mesh files Swift · SceneKit
πŸ“ˆ Intraday Trading Bot πŸ”’ Deterministic US-equities system where the LLM never touches the order trigger β€” layered hard risk controls, shadow-mode validation, six review rounds. Source private (it trades a real account) β€” ask me about the architecture Python Β· moomoo API
🧩 LeetCode Tracker Self-hosted practice platform: bilingual sync pipeline, study plans, local sandboxed judge, AI tutor. 130+ tests in CI TypeScript · React 19 · tRPC · Drizzle
πŸ”¬ Skin Lesion Analysis My first DL project, retrained in 2026 β€” all three ISIC 2018 tasks, a concept-bottleneck experiment, a skin-tone fairness audit, and a scored entry on the live ISIC MILK10k leaderboard (macro F1 0.422) Python Β· TensorFlow Β· EfficientNetV2

Smaller things: fk_popmart β€” Pop Mart restock monitor Β· the portfolio site itself β€” hand-built Three.js, no framework

Stack

Swift Python TypeScript React Three.js MySQL Claude Code

Find me

🌐 teddy8023mars.github.io Β· πŸ™ @teddy8023mars Β· EN / δΈ­ζ–‡ both fine

Pinned Loading

  1. Skin-lesion-classification Skin-lesion-classification Public

    ISIC 2018 dermoscopy deep learning β€” all three tasks, a concept-bottleneck experiment, a skin-tone fairness audit, and a scored entry on the live ISIC MILK10k leaderboard (macro F1 0.422). My first…

    Jupyter Notebook

  2. leetcode-tracker leetcode-tracker Public

    Self-hosted LeetCode practice platform β€” bilingual problem sync, study plans, local online judge, AI explanations. React 19 + tRPC + Drizzle/MySQL.

    TypeScript

  3. DeskCat DeskCat Public

    macOS desktop companion: a 3D teddy bear (or cat) whose head follows your mouse β€” SceneKit + procedural SDF modeling

    Swift

  4. QuickMD QuickMD Public

    A lightweight native macOS Markdown previewer with GFM, syntax highlighting, Mermaid diagrams, LaTeX math, and dark mode support

    JavaScript

  5. teddy8023mars.github.io teddy8023mars.github.io Public

    My interactive 3D portfolio β€” a low-poly studio you can poke around. Three.js, no build step.

    JavaScript

  6. fk_popmart fk_popmart Public

    Pop Mart restock monitor β€” notify-only, no auto-checkout

    Python 2 1