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Working from earth
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Working from earth
6 followers · 12 following
  • Japan
  • 14:03 (UTC +09:00)

Achievements

Achievement: Pull Sharkx3Achievement: YOLOAchievement: Public SponsorAchievement: QuickdrawAchievement: Pair Extraordinaire

Achievements

Achievement: Pull Sharkx3Achievement: YOLOAchievement: Public SponsorAchievement: QuickdrawAchievement: Pair Extraordinaire

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Cosmo2357/README.md

Yufuki Hayashi

🧠 AI : LangChain / LangGraph / Claude Code

💻 📱 Full-Stack Developer : Next.js / React / React Native / Node.js / AWS

Remote @ 🇯🇵 Japan IT company · Building a startup & an NPO · 🐱 Cat lover

About me 👋

Hi! I'm a full-stack developer working remotely in Japan.
I'm preparing to launch a startup and an NPO. Feel free to reach out anytime!

🧰 Tech Stack

AI: LangChain, LangGraph
AI Tools: Claude Code, Copilot
Mobile: React Native (Expo), Flutter
Web App: Next (Fullstack), Remix / React Router v7 (Fullstack), React
Desktop: Electron
Backend: Bun, Node.js, Hono, Express
Design: Figma

Next.js React Remix React Native Flutter Electron Bun Node.js Hono Express Claude Copilot

gp2-1 gp2-2 gp2-3 gp2-4

🏅 Certificates & Achievements

Click to expand / collapse

🚀 Featured Projects

2023 Satellite Tracker | Cesium | 人工衛星等位置情報システム

Stack: Cesium

This system is built upon TLE (Two-Line Element Set) data provided by Space-Track.org, an official service managed by the United States Air Force (USAF) and the United States Space Command (USSPACECOM).
本システムは、アメリカ空軍およびアメリカ宇宙コマンドが管理する公式サービス Space-Track.org が提供する TLE データを基に構築されています。

Dec 2021 — Facebook clone | React / Node.js / Express / MySQL
Dec 2021 — TikTok clone | React Native tiktok-clone
Example Project (Gallery)

Pinned Loading

  1. Go-Echo-API-with-Swagger-UI Go-Echo-API-with-Swagger-UI Public

    🚙 Go Echo API with Swagger UI 🍢

    Go 1

  2. pinot_python pinot_python Public

    🍷🐍 Apache Pinot with Python

    Python 1

  3. webRTC_Bluetooth_Expo50 webRTC_Bluetooth_Expo50 Public

    😃 Expo v50でもWebRTC動くよ〜（たぶん）

    TypeScript 1

  4. elastic_express elastic_express Public

    🍡 ElasticSearch

    TypeScript

  5. notebook notebook Public

    🗒️

    Jupyter Notebook

  6. backend-boilerplate-mongo backend-boilerplate-mongo Public

    🏯 [WIP] Express Backend Boilerplate for a personal project🗻

    TypeScript