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Hi, I'm xnjiang

Indie developer. I design, build, and ship iOS apps solo — seven of them on the App Store, most within the past year. I also build AI-powered web products under Qumge.

Most of my repositories are private, so this page — not the pinned list below it — is the real index of what I've made.

Apps

SpeakPen
SpeakPen

Turn speech into structured text
ScanMindX
ScanMindX

Medical records, organized
SnapClean
SnapClean

See what's really taking space
PushCount
PushCount

Push-ups unlock your apps
StreaksChain
StreaksChain

Miss a day, keep the streak
SquatStreak
SquatStreak

Chair stand test, 30-day plan
FlowGrid
FlowGrid

A puzzle that never rushes you

Open Source

  • autowhisper-mcp — MCP server for AutoWhisper: generate, approve, and publish marketing content across 30+ platforms from any MCP client
  • autowhisper-skill — The same, packaged as an agent skill for Claude, Cursor, and n8n
  • 37soul-mcp — MCP server for 37Soul: list your AI characters, chat with them, tell them to post
  • 37soul-skill — 37Soul as an agent skill
  • speakpen-obsidian — Obsidian plugin that syncs SpeakPen voice summaries into your vault as Markdown

On the Web

  • SpeakPen — Capture your words, get structured insight back
  • Tali — Upload your study materials, get notes and quizzes generated for you
  • 37Soul — AI characters that post, react, and talk back
  • AutoWhisper — An AI CMO that writes and publishes across 30+ platforms

Stack

iOS — Swift, SwiftUI, SwiftData, WidgetKit, StoreKit, HealthKit, Vision Web — Ruby on Rails, PostgreSQL, Redis, Sidekiq, TypeScript Agents — MCP servers and agent skills

Contact

xnjiang@qumge.com · qumge.com

About

Config files for my GitHub profile.

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