Bringing AI and new media to the experience industries — travel, leisure, and wellbeing.
I build human-centered products where AI and new media meet the experience industries — travel, leisure, and wellbeing. Technology should make real experiences warmer, not colder.
Simulates your body clock with a published limit-cycle model, then computes the fastest day-by-day light-and-dark schedule to beat jet lag. Gated on biological unit tests — travel and wellbeing, taken seriously as science.
Solves the Team Orienteering Problem with Time Windows — an NP-hard multi-day itinerary optimizer (greedy insertion + iterated local search), hand-written and running entirely in the browser. The hard-algorithms flagship in this portfolio: travel meets real operations research.
An AI itinerary planner that talks straight to Claude or OpenAI with your own key — no middleman server. The clearest proof of AI × travel in this portfolio.
An AI-driven agent that perceives and acts inside a living virtual world — a sandbox for how agents behave in immersive, playful spaces.
A new-media showcase of China’s natural landscapes — digital storytelling for destinations and travel.
An inflation-aware financial-independence calculator — privacy-first, zero-dependency, unit-tested. Proof I ship polished, trustworthy products end to end.
Backtests dollar-cost averaging vs lump-sum on real index history — bundled data, money-weighted IRR, unit-tested. Another polished, end-to-end product.
A self-serve organizer for after-death digital affairs in China — inventory scattered WeChat, Alipay, game and cloud-photo assets into a list your family can find and understand, paired with per-platform how-to guides. No password fields, zero network requests, and explicitly not a will — property division still goes through a notary.
A closed-loop pipeline for hardening AI skills — a cheap model mass-generates adversarial evals, a capable model surgically tunes, and curated scenarios become a public eval set. The engineering rigor behind the products above.
On-device pose estimation (33 keypoints, MediaPipe, zero network calls) turns the published 30-Second Chair Stand test and Otago balance exercises into camera-quantified numbers, gated by dual-signal hysteresis and pinned by exact keypoint-fixture tests. Fall prevention taken as seriously as the science behind it — no diagnosis, no invented scores.
git clone https://github.com/DENGYUFAN0/qigua-skillgit clone https://github.com/DENGYUFAN0/agent-deckgit clone https://github.com/DENGYUFAN0/skill-forgegit clone https://github.com/DENGYUFAN0/cost-advisorgit clone https://github.com/DENGYUFAN0/liaowang-skillgit clone https://github.com/DENGYUFAN0/guashuai-junshigit clone https://github.com/DENGYUFAN0/longtermism-skillgit clone https://github.com/DENGYUFAN0/sleep-switchgit clone https://github.com/DENGYUFAN0/opencode-oom-guard“The people who are crazy enough to think they can change the world are the ones who do.”
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