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Working from home
4 followers · 5 following

Achievements

Achievement: Pull SharkAchievement: Pair ExtraordinaireAchievement: YOLO

Achievements

Achievement: Pull SharkAchievement: Pair ExtraordinaireAchievement: YOLO

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HarryXin0919/README.md

Hi, I'm Harry ๐Ÿ‘‹

High-school maker who likes turning messy real-world problems into clean code.
Open-source hardware & developer tools ยท interested in physics, math, and engineering.
Currently: ESP32 hardware, plus small open-source tools around the Claude / MCP ecosystem.

Python TypeScript C++ Java

ESP32 Arduino MQTT FastAPI Spring Boot Node.js

Git GitHub Actions VS Code Windows PowerShell

๐Ÿ”ง What I build

  • ๐Ÿค– Hardware / IoT โ€” ESP32 firmware that lights up, beeps, and shows things on real screens
  • ๐Ÿ› ๏ธ Developer tools โ€” CLIs & daemons (TypeScript / Python) with tests, packaging, and CI
  • ๐Ÿ“Š Data analysis โ€” hypothesis-driven, and honest about what the data does and doesn't show

๐Ÿ“Œ Featured projects

Hardware / IoT โ€” real devices over MQTT and ESP32

FindItem โ€” search a part and the right ESP32-C3 storage bin lights an LED and buzzes; MQTT with FastAPI / Spring Boot backends. ClaudeOrb โ€” a desk orb showing live Claude plan usage on a round ESP32-S3 LCD, fed by a local Python proxy. ClaudeSlate โ€” Claude usage, a clock and 5-day weather on a 4.2-inch reflective ESP32-S3 LCD.

AI & developer tools โ€” around the Claude / MCP ecosystem

factlens โ€” multimodal fact-checker for online video: transcribes audio, reads on-screen text, and web-verifies each claim. ctxtax โ€” CLI that measures per-tool MCP context-token cost via Anthropic's token-count API. Looming โ€” a daemon that loops Claude Code against a durable mission until you interrupt it.

Data & analysis โ€” and the things that support the projects above

viralens โ€” pulls Bilibili / YouTube creator video data and tests, hypothesis-first, which content form drives views. PantryPath โ€” finds the cheapest ingredient-substitution chain by modeling it as a shortest-hyperpath; offline, no ML. findit-website โ€” the open-source static landing page for FindItem, deployed on GitHub Pages.

Hardware / IoT

  • FindItem โ€” decentralized parts locator: search a part, the right bin lights up and beeps (ESP32-C3 ยท MQTT ยท FastAPI / Spring Boot)
  • ClaudeOrb โ€” round ESP32-S3 desk orb showing live Claude plan usage, fed by a local Python proxy
  • ClaudeSlate โ€” Claude usage + clock + weather on a 4.2โ€ณ reflective, low-power ESP32-S3 screen

AI & developer tools

  • factlens โ€” multimodal video fact-checker: transcribe + read the screen + web-verify โ†’ one HTML report
  • ctxtax โ€” measures the context-token cost of each MCP tool, in tokens and dollars
  • Looming โ€” autonomous-loop daemon that keeps Claude Code working a mission across fresh sessions

Data & analysis

  • viralens โ€” hypothesis-driven analytics for Bilibili / YouTube creators
  • PantryPath โ€” cheapest ingredient-substitution chain as a shortest-hyperpath (no ML, no API)
  • findit-website โ€” the open-source landing page for FindItem

๐Ÿ“ˆ GitHub

followers total stars

Mostly Python ยท TypeScript ยท C++ (ESP32) ยท Java โ€” see the project cards above for the real mix.

Pinned Loading

  1. viralens viralens Public

    Open-source analytics for Bilibili & YouTube creators โ€” pull your video data and find which content form actually drives views. Hypothesis-driven, cross-zone, no black box. ๅผ€ๆบ:ๆŠ“ๅ– B็ซ™/YouTube ๅˆ›ไฝœ่€…่ง†้ข‘ๆ•ฐๆฎโ€ฆ

    Python 2 1

  2. FindItem FindItem Public

    Open-source decentralized parts locator: search a part and the right storage bin lights up and beeps. ESP32-C3 firmware + FastAPI / Spring Boot backends over MQTT.

    Java 2

  3. pantrypath pantrypath Public

    Out of an ingredient? PantryPath finds the cheapest substitution chain by modeling cooking substitutions as a shortest-hyperpath problem. No ML, no API: offline and explainable.

    Python 1