✦ Your mind, your rules ✦

AI that walks with you.
No cloud. No leaks.

Alex Personal AI is a private, wearable intelligence built on Raspberry Pi. Speech-to-text, local inference, Bluetooth headset & Meta glasses ready. Always with you, never sharing your data.

Alex Personal AI - Custom 3D Printed Raspberry Pi Enclosure

Custom 3D-printed enclosure

Raspberry Pi 4B | TFT display | Active cooling

🎙️ Bluetooth headset | 👓 Meta glasses ready

🔋 10,000 mAh power bank · 12+ hrs

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🎙️

Voice-first

Speech-to-text running locally on Pi. Connect your Bluetooth headset, AirPods, or any mic — Alex listens, no third party.

👓

Meta glasses ready

Wearable display integration. See transcripts and AI replies right in your glasses. Truly hands‑free.

🔐

Zero external access

All processing stays on-device. No API keys, no cloud dependencies. Your conversations never leave your pocket.

📡

Onboard WiFi + hotspot

Built-in WiFi module. Creates its own secure network or connects to trusted ones — but never sends data out.

⚡

Mobile power bank mount

Integrated zip-tie mounting and 18650 / USB-C battery pack. All-day autonomy in your bag or belt.

🧩

Fully 3D printable case

Custom TFT front cover, airflow vents, M3 screw mounts. Print in PLA/PETG, assemble in 20 minutes.

🛡️🔒

Your data is never for sale. Or for the cloud.

Alex Personal AI uses offline speech-to-text (Whisper.cpp or Vosk) + local LLM (Ollama or llama.cpp). The microphone stream goes directly to the Pi's CPU. No Google, no Amazon, no server — 100% personal sovereignty.

✔ No voice data leaves the device

✔ Bluetooth encryption remains local

✔ Optional airgap mode: WiFi disabled

🧩 Build your Alex AI agent

Open hardware, fully documented. 3D print the case, solder nothing — just stack components.

📦 Bill of materials

✅ Raspberry Pi 4B (4GB+ recommended)
✅ 3.5" TFT Touchscreen (GPIO header)
✅ All-in-one cooler (heatpipe + fan)
✅ 10,000 mAh power bank (with zip-tie mounts)
✅ Bluetooth 5.0 USB dongle (or onboard)
✅ M3x6 screws + M3 nuts (for cover)
✅ MicroSD 64GB (Raspberry Pi OS Lite)

Case files: rpi4_case_body.stl + front_cover.stl. Print without supports.

                ⚙️ Quickstart (software)

                # clone Alex local AI stack

                git clone https://github.com/alex-personal/agent

                cd agent && ./install.sh

                # offline speech engine

                make whisper.cpp && ./stream -m ggml-base.bin

                # run local LLM (phi-3 / llama3)

                ollama serve & ollama run alex-assistant

                # connect bluetooth headset

                bluetoothctl → pair & trust → enjoy private AI

🔊 How it works — wear & speak

🎧 Bluetooth headset workflow

Pair your headset to the Pi via BlueALSA. Alex captures microphone input, runs real-time STT, feeds to local LLM, then speaks back through headset (or TTS). No round-trip to internet.

📱 "Hey Alex, what's my schedule?" → on-device processing → "You have one meeting at 3 PM."

👓 Meta glasses integration

Cast Alex's output display to Meta Ray-Ban glasses via WiFi direct or USB-C. Receive transcripts, notifications, and AI responses in your field of view. Perfect for private assistance without looking at a screen.

✨ Low latency, local casting

🔋 All day, anywhere

The 3D printed case includes integrated zip tie channels for a slim power bank. With efficient local AI, you get 8–12 hours of active use. Hot-swappable battery keeps you going.

📶 WiFi as a tool, not a leash

Alex can run completely offline. Enable WiFi only for fetching software updates or local network access — but all personal data stays inside the device.

open source · no cloud · your second brain

Start building your private AI agent today.

💡 Alex Personal AI — Because your conversations belong to you.

AI that walks with you.No cloud. No leaks.