fancyboi999 Xinmin Zeng
Building smarter agents, breaking dumb limits. Focused on AI / AGENTS/ RAG 📧 fancyboi999@gmail.com 🧠 fancyboi999 (WeChat)
EVIDENCE BASE
67
Repositories
3774
Commits
11705
Files analyzed
74
Technologies
362
Evidence
16
Active months
Based on 67 repository passports · 32/67 current
ENGINEERING PROFILE
Frontend53%
Backend71%
Testing43%
DevOps75%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 15/67 repos · 3250 files · 645887 LOC
Depth 70 · HIGH
Markdown Core
LANGUAGE · 31/67 repos · 2632 files · 275834 LOC
Depth 70 · HIGH
Python Core
LANGUAGE · 19/67 repos · 1800 files · 226082 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 19/67 repos · 1187 files · 137347 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 7/67 repos · 871 files · 192668 LOC
Depth 74 · HIGH
JavaScript Core
LANGUAGE · 13/67 repos · 464 files · 117984 LOC
Depth 70 · HIGH
Go Emerging
LANGUAGE · 1/67 repos · 166 files · 11222 LOC
Depth 70 · HIGH
Rust Recurring
LANGUAGE · 2/67 repos · 132 files · 7867 LOC
Depth 70 · HIGH
NumPy Recurring
LIBRARY · 3/67 repos · 96 files · 23602 LOC
Depth 74 · HIGH
YAML Core
LANGUAGE · 16/67 repos · 66 files · 25402 LOC
Depth 70 · HIGH
Next.js Core
FRAMEWORK · 5/67 repos · 61 files · 20778 LOC
Depth 74 · HIGH
Axios Recurring
LIBRARY · 2/67 repos · 60 files · 20389 LOC
Depth 74 · HIGH
Pydantic Core
LIBRARY · 11/67 repos · 42 files · 4845 LOC
Zod Core
LIBRARY · 6/67 repos · 31 files · 6602 LOC
Depth 78 · HIGH
SQL Recurring
LANGUAGE · 2/67 repos · 31 files · 3556 LOC
Depth 70 · HIGH
pytest Core
TESTING · 5/67 repos · 30 files · 4080 LOC
Depth 53 · HIGH
Shell Core
LANGUAGE · 8/67 repos · 28 files · 2238 LOC
Depth 70 · HIGH
React Router Recurring
LIBRARY · 2/67 repos · 23 files · 7400 LOC
Depth 74 · HIGH
Vitest Recurring
TESTING · 3/67 repos · 21 files · 3141 LOC
Depth 57 · HIGH
debug Core
LIBRARY · 4/67 repos · 21 files · 11186 LOC
Depth 62 · HIGH
TOML Core
LANGUAGE · 13/67 repos · 20 files · 979 LOC
Depth 70 · HIGH
Redis Core
CACHE · 5/67 repos · 18 files · 15803 LOC
Depth 88 · HIGH
Requests Core
LIBRARY · 10/67 repos · 16 files · 2694 LOC
Depth 66 · HIGH
Prettier Recurring
QUALITY · 3/67 repos · 12 files · 15618 LOC
Depth 72 · HIGH
npm Core
BUILD_TOOL · 12/67 repos · 12 files · 120 LOC
Depth 80 · HIGH
Poetry Core
BUILD_TOOL · 10/67 repos · 10 files · 100 LOC
Depth 80 · HIGH
ESLint Core
QUALITY · 4/67 repos · 10 files · 23645 LOC
Depth 65 · HIGH
PostgreSQL Core
DATABASE · 4/67 repos · 9 files · 7182 LOC
Depth 89 · HIGH
SQLAlchemy Emerging
LIBRARY · 1/67 repos · 9 files · 1370 LOC
Depth 93 · HIGH
Dockerfile Core
LANGUAGE · 9/67 repos · 9 files · 305 LOC
Depth 70 · HIGH
pip Core
BUILD_TOOL · 8/67 repos · 8 files · 80 LOC
Depth 80 · HIGH
Vue Recurring
LANGUAGE · 2/67 repos · 7 files · 1106 LOC
Depth 70 · HIGH
FastAPI Core
FRAMEWORK · 7/67 repos · 7 files · 2602 LOC
uv Core
BUILD_TOOL · 6/67 repos · 6 files · 60 LOC
Depth 80 · HIGH
Vite Recurring
BUILD_TOOL · 3/67 repos · 6 files · 2232 LOC
Depth 62 · HIGH
Playwright Recurring
LIBRARY · 3/67 repos · 5 files · 968 LOC
Depth 58 · HIGH
XML Recurring
LANGUAGE · 3/67 repos · 4 files · 31 LOC
Depth 70 · HIGH
Uvicorn Core
LIBRARY · 6/67 repos · 3 files · 2258 LOC
pnpm Recurring
BUILD_TOOL · 3/67 repos · 3 files · 30 LOC
Depth 80 · HIGH
Starlette Recurring
FRAMEWORK · 2/67 repos · 2 files · 2190 LOC
Depth 51 · HIGH
lxml Recurring
LIBRARY · 3/67 repos · 2 files · 323 LOC
Depth 58 · HIGH
MongoDB Recurring
DATABASE · 2/67 repos · 2 files · 3828 LOC
Depth 65 · HIGH
Jest Emerging
TESTING · 1/67 repos · 2 files · 1626 LOC
Depth 62 · HIGH
Alembic Emerging
DATABASE · 1/67 repos · 2 files · 125 LOC
Depth 81 · HIGH
RabbitMQ Recurring
MESSAGE_BROKER · 2/67 repos · 2 files · 4356 LOC
Depth 65 · HIGH
pandas Emerging
LIBRARY · 1/67 repos · 2 files · 592 LOC
Depth 62 · HIGH
Webpack Emerging
BUILD_TOOL · 1/67 repos · 2 files · 1626 LOC
Depth 62 · HIGH
curl_cffi Emerging
LIBRARY · 1/67 repos · 1 files · 172 LOC
Depth 58 · HIGH
Click Recurring
LIBRARY · 2/67 repos · 1 files · 84 LOC
Svelte Emerging
FRAMEWORK · 1/67 repos · 1 files · 824 LOC
Depth 58 · HIGH
Bundler Emerging
BUILD_TOOL · 1/67 repos · 1 files · 10 LOC
Depth 80 · HIGH
Cargo Emerging
BUILD_TOOL · 1/67 repos · 1 files · 10 LOC
Depth 80 · HIGH
Lodash Emerging
LIBRARY · 1/67 repos · 1 files · 203 LOC
Depth 58 · HIGH
Elasticsearch Emerging
DATABASE · 1/67 repos · 1 files · 3763 LOC
Depth 65 · HIGH
Socket.IO Emerging
LIBRARY · 1/67 repos · 1 files · 122 LOC
Depth 58 · HIGH
Ruby Emerging
LANGUAGE · 1/67 repos · 1 files · 10 LOC
Depth 70 · HIGH
Go Modules Emerging
BUILD_TOOL · 1/67 repos · 1 files · 10 LOC
Depth 80 · HIGH
Tailwind CSS Recurring
LIBRARY · 2/67 repos · 1 files · 28 LOC
Depth 45 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/67 repos · 1 files · 3763 LOC
Depth 65 · HIGH
Serde Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
mypy Recurring
QUALITY · 2/67 repos · 0 files · 0 LOC
python-dotenv Core
LIBRARY · 4/67 repos · 0 files · 0 LOC
MarkupSafe Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
Black Emerging
QUALITY · 1/67 repos · 0 files · 0 LOC
Werkzeug Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
Gunicorn Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
esbuild Emerging
BUILD_TOOL · 1/67 repos · 0 files · 0 LOC
Ruff Recurring
QUALITY · 2/67 repos · 0 files · 0 LOC
Jinja2 Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
HTTPX Recurring
LIBRARY · 2/67 repos · 0 files · 0 LOC
JSON Web Tokens Emerging
SECURITY · 1/67 repos · 0 files · 0 LOC
AWS SDK Emerging
CLOUD · 1/67 repos · 0 files · 0 LOC
itsdangerous Emerging
LIBRARY · 1/67 repos · 0 files · 0 LOC
Flask Emerging
FRAMEWORK · 1/67 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
Loomic PostgreSQL
goofish-cli Requests
weixin_search_mcp Poetry
open-tag Redis
JobPilot npm
Banana-Studio npm
ACTIVITY & OWNERSHIP
Active months 16
Commits 3774
Owner authored 100%
PRIMARY PROFILE — HR VIEW
Full-stackTypeScript · Markdown · PythonHigh ownership
In 30 sec: direction — full-stack, core — TypeScript · Markdown · Python, 67 repos 2025 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptMarkdownPythonJSONReactHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 2388
Forks 403
Watchers 38
EVERYTHING ABOVE IS TRACEABLE
67 repositories · 3774 commits · 11705 files · 362 evidence
Absence of a technology in the passport does not imply lack of experience