# Voice Commander: Control Your Mac with Hey Jarvis

> Source: <https://dev.to/amrendra_n_mishra/voice-commander-control-your-mac-with-hey-jarvis-47ma>
> Published: 2026-08-02 04:20:42+00:00

Every token costs money. Every API call adds up. And your data goes to their servers.

```
brew install ollama
ollama pull llama3.2
ollama serve
```

Now you have a GPT-4 level model running on your MacBook. Free. Private. Fast.

``` python
import requests

def ask_local_ai(question):
    r = requests.post(
        "http://localhost:11434/api/generate",
        json={"model": "llama3.2", "prompt": question, "stream": False}
    )
    return r.json()["response"]

# Works immediately, no API key needed
answer = ask_local_ai("Explain Docker in one paragraph")
print(answer)
```

| Model | Size | Best For |
|---|---|---|
| llama3.2 | 2GB | General use |
| codellama | 4GB | Code tasks |
| mistral | 4.4GB | Fast reasoning |
| phi3 | 2.2GB | Lightweight tasks |
| gemma2 | 5.4GB | Complex reasoning |

I built 45 tools using this stack. All free. All local. All open source.

[github.com/amrendramishra/ai-tools](https://github.com/amrendramishra/ai-tools)

*VP at JPMorgan Chase. Building AI tools at amrendranmishra.dev*