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fellow99
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fellow99

Full-stack builder shipping AI-native tools across desktop, web & mobile

I design, build and ship open-source products that put AI agents to work — from Electron and HarmonyOS desktops to a five-platform business framework, an LLM gateway, a reusable skills library and a 3D scene editor. Agents write the first draft; I own the architecture, review and release.

GitHub Browse projects
  • 6open-source projects
  • 5platform targets
  • 100%AI-native workflow

$ ls -1 projects/

Projects

Six independent, open-source projects — each one live, and each one a doorway.

01

DeepSeek Harness Desktop

Run DeepSeek Harness, the open-source AI agent harness, as a native desktop app. An Electron shell covers Windows, Linux and macOS, plus a HarmonyOS 2in1 / tablet port — reusing the official web UI with zero upstream changes.

  • Electron
  • HarmonyOS
  • ArkTS
  • Node.js
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02

TPL Framework

One skeleton, five platforms. A multi-platform business application framework spanning web, Android, HarmonyOS and WeChat mini program plus an admin console — with a unified project structure, shared design tokens and dual backends.

  • Vue 3
  • Spring Boot
  • Kotlin
  • ArkTS
Visit site
03

fellow99 Skills

A reusable library of AI agent skills: HarmonyOS development and on-device testing, mini-program automation and CI, image generation, code-graph navigation and spec-driven development flows.

  • OpenCode
  • Claude Code
  • Node.js
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04

LLM Router

An OpenAI-compatible gateway that aggregates many model providers behind a single endpoint: prefix-based routing, model aliases, weighted load balancing and automatic failover — with streaming and structured logs.

  • TypeScript
  • Express
  • Proxy
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05

Games Index

A zero-dependency arcade of browser games — an AI-generated visual novel, a vertical shoot-'em-up and minesweeper — hand-built with plain HTML, CSS and JavaScript. Click and play.

  • HTML5
  • Canvas
  • Vanilla JS
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06

Three Editor by AI

A 3D scene editor written entirely by AI. Built with Vue 3 and Three.js: object transforms, materials and lights, animation playback, GLTF / OBJ / FBX import and a virtual file system for assets.

  • Vue 3
  • Three.js
  • WebGL
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$ man fellow99

About

I'm fellow99 — an independent full-stack developer who builds with AI, end to end. Most of my projects start as an idea plus an agent, then get shaped into shipped, cross-platform open-source tools: desktop shells, multi-platform frameworks, model gateways and creative editors.

I care about clean architecture, honest documentation and things that run offline when they can. Everything here is MIT-licensed and built in the open.

Get in touch — [email protected]

  • Ships across five targets: Windows / Linux / macOS, HarmonyOS, Android, WeChat mini program and the web.
  • AI-native workflow — agents draft the code, I own architecture, review and release.
  • Open source first: every project is public and MIT-licensed.