Dawei Geng

Hello! 👋 Product Designer turned Indie Hacker. Building a "Ghost Twin" for macOS.

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Hi everyone! 👋

I’m a product designer turned indie dev.

I’m working on GHOSTYPE—a context-aware AI voice interface for macOS.

I built this because I was tired of two things:

  1. "Smart" tools are actually dumb: If I say "Ask Mike to hang out tomorrow," standard AI writes a formal email. I don't want to dictate every word, and I don't want to sound like a robot. I wanted a tool that takes my intent and writes the actual message as me.

  2. AI tools that break my flow (copy-pasting, hitting Enter manually).

So I built a native macOS interface that sits between your voice and your apps. It doesn't just "transcribe"—it automates the whole input workflow.

Here is what it actually does:

⚡️ 1. Smart Auto-Send (No Keyboard Needed) It detects where you are.

  • In Slack? It types and hits Cmd+Enter.

  • In Discord? It hits Enter.

  • In Notes? It just pastes. I can reply to messages without touching my keyboard once.

🎨 2. App-Specific Profiles It context-switches for me.

  • Outlook: Automatically polished to "Professional".

  • Telegram: Switches to "Casual & Lowercase".

  • VS Code: Formats code blocks automatically.

🧩 3. Ghost Morph (Agent Skills) It’s not just for chatting. Hold a modifier key to trigger custom agents:

  • "Turn this rant into a structured Jira Ticket."

  • "Turn this thought into a Twitter Thread."

👻 4. Ghost Twin (The Soul That Speaks For Me) This is the core. The engine analyzes my local message history to learn my habits.

  • Input: "Tell him I'm running late."

  • Output: "Yo, running 5 mins late. Start without me. 🏃" (Because that's how I talk). It doesn't just polish; it generates the message based on my intent and style.

🔒 And yes, it’s Privacy-Focused. Since I'm an indie dev and can't afford cloud storage for everyone, I built it on a Local-Storage architecture. Your writing history and style vectors never leave your Mac.

I’m currently polishing the beta

I’d love to know: Which part of your current writing workflow is the most painful? Formatting? Tone checking? Or just the typing itself?

Let me know! 👇

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Dawei Geng

By the way, here is the link if anyone wants to check it out: ghostype.one