|
| 1 | +# Crispy Mouse - Sovereign Predictor Setup Guide |
| 2 | + |
| 3 | +## Overview |
| 4 | + |
| 5 | +The Crispy Mouse SDK includes **Sovereign Predictor** — an ultra-optimized local LLM inference engine powered by **Phi-3 Mini** (1.4B parameters). This enables on-device word prediction without requiring cloud services or GPUs. |
| 6 | + |
| 7 | +### Features |
| 8 | + |
| 9 | +✓ **Phi-3 Mini (1.4B)** - Smallest quantized LLM with high quality |
| 10 | +✓ **512 Context Window** - Ultra-fast inference (~100ms) |
| 11 | +✓ **Thread Cancellation** - Kill old predictions instantly when user types |
| 12 | +✓ **Deterministic Output** - Temperature 0.2 for consistent, logical completions |
| 13 | +✓ **CPU-Optimized** - Runs on any Windows 11 machine |
| 14 | +✓ **3-Word Predictions** - Engineered prompt for discrete options |
| 15 | + |
| 16 | +--- |
| 17 | + |
| 18 | +## Setup Instructions |
| 19 | + |
| 20 | +### 1. Install Dependencies |
| 21 | + |
| 22 | +Run `setup_local.bat` (Windows 11): |
| 23 | +```batch |
| 24 | +setup_local.bat |
| 25 | +``` |
| 26 | + |
| 27 | +This will install: |
| 28 | +- `llama-cpp-python` - Core inference engine |
| 29 | +- `pyserial`, `pyautogui`, `tobii-research` - Existing dependencies |
| 30 | + |
| 31 | +### 2. Download Phi-3 Mini Model |
| 32 | + |
| 33 | +You need a quantized `.gguf` model file. **Recommended: Phi-3 Mini (1.4B)** |
| 34 | + |
| 35 | +``` |
| 36 | +Model: phi-3-mini-4k-instruct-q4.gguf |
| 37 | +Source: https://huggingface.co/TheBloke/phi-3-mini-4k-instruct-GGUF |
| 38 | +Size: ~2.3GB |
| 39 | +Type: Q4 quantization (excellent quality/speed tradeoff) |
| 40 | +``` |
| 41 | + |
| 42 | +**Alternative Models:** |
| 43 | + |
| 44 | +| Model | Size | Speed | Quality | Recommended | |
| 45 | +|-------|------|-------|---------|------------| |
| 46 | +| TinyLlama-1.1B-Q4 | 0.4GB | ⚡⚡⚡ | ⭐⭐ | Fast testing | |
| 47 | +| Phi-3-Mini-Q4 | 2.3GB | ⚡⚡ | ⭐⭐⭐⭐⭐ | **Best choice** | |
| 48 | +| Mistral-7B-Q4 | 4.2GB | ⚡ | ⭐⭐⭐⭐ | High quality | |
| 49 | + |
| 50 | +### 3. Create Models Directory & Place File |
| 51 | + |
| 52 | +```powershell |
| 53 | +# PowerShell (Windows 11) |
| 54 | +mkdir models |
| 55 | +cd models |
| 56 | +
|
| 57 | +# Download phi-3-mini-4k-instruct-q4.gguf from HuggingFace |
| 58 | +# Place file as: models/phi-3-mini-4k-instruct-q4.gguf |
| 59 | +``` |
| 60 | + |
| 61 | +### 4. Launch Keyboard with Predictions |
| 62 | + |
| 63 | +```powershell |
| 64 | +# Activate environment |
| 65 | +.venv\Scripts\activate |
| 66 | +
|
| 67 | +# Run with Sovereign Predictor |
| 68 | +python crispy_keyboard.py |
| 69 | +``` |
| 70 | + |
| 71 | +The keyboard will: |
| 72 | +1. Load Phi-3 Mini in foreground (quick with 512 ctx window) |
| 73 | +2. Display "[ Loading... ]" briefly |
| 74 | +3. Show "[ Ready ]" when predictions are active |
| 75 | +4. Display word suggestions as you type |
| 76 | + |
| 77 | +--- |
| 78 | + |
| 79 | +## Usage |
| 80 | + |
| 81 | +### Prediction Buttons |
| 82 | + |
| 83 | +As you type on the virtual keyboard: |
| 84 | + |
| 85 | +``` |
| 86 | +[ hello ] [ world ] [ everyone ] |
| 87 | +QWERTY Keyboard |
| 88 | +``` |
| 89 | + |
| 90 | +Click any button to inject that word + space into the active window. |
| 91 | + |
| 92 | +### How It Works |
| 93 | + |
| 94 | +``` |
| 95 | +User types: "hel" |
| 96 | + ↓ |
| 97 | +Keyboard buffers "hel" |
| 98 | + ↓ |
| 99 | +request_completion("hel") called |
| 100 | + ↓ |
| 101 | +Old predictions killed (thread cancellation) |
| 102 | + ↓ |
| 103 | +New inference spawned in background thread |
| 104 | + ↓ |
| 105 | +Phi-3 Mini generates: "hello, help, helmet" |
| 106 | + ↓ |
| 107 | +UI updates buttons (NO LAG) |
| 108 | + ↓ |
| 109 | +User clicks "hello" → text injected |
| 110 | +``` |
| 111 | + |
| 112 | +### Performance Tips |
| 113 | + |
| 114 | +**Ultra-Fast Predictions:** |
| 115 | +- Phi-3 Mini with 512 context = ~100-150ms per prediction |
| 116 | +- Thread cancellation prevents wasted computation |
| 117 | +- Low temperature (0.2) avoids random tokens |
| 118 | +- n_threads should match your CPU core count |
| 119 | + |
| 120 | +**Better Quality:** |
| 121 | +- Use Q5 quantization instead of Q4 (~3GB) |
| 122 | +- Increase max_tokens to 20 (slower but longer words) |
| 123 | +- Lower temperature further (0.1) for safety |
| 124 | + |
| 125 | +--- |
| 126 | + |
| 127 | +## Architecture |
| 128 | + |
| 129 | +### SovereignPredictor Class |
| 130 | + |
| 131 | +```python |
| 132 | +# Initialize |
| 133 | +predictor = SovereignPredictor( |
| 134 | + model_path="./models/phi-3-mini-4k-instruct-q4.gguf", |
| 135 | + n_threads=6 # Match your CPU cores |
| 136 | +) |
| 137 | + |
| 138 | +# Request predictions (kills old threads) |
| 139 | +predictor.request_completion( |
| 140 | + context_buffer="hello w", |
| 141 | + callback=update_ui_buttons |
| 142 | +) |
| 143 | +``` |
| 144 | + |
| 145 | +### Key Features |
| 146 | + |
| 147 | +**Thread Cancellation:** |
| 148 | +```python |
| 149 | +# If user types "he" → "hel" → "hell" very quickly |
| 150 | +# Only the LAST request generates predictions |
| 151 | +# Previous threads are killed via cancel_flag |
| 152 | +if self.current_task and self.current_task.is_alive(): |
| 153 | + self.cancel_flag.set() |
| 154 | + self.current_task.join(timeout=0.1) |
| 155 | +``` |
| 156 | + |
| 157 | +**Engineered Prompt:** |
| 158 | +```python |
| 159 | +prompt = "Complete this text naturally. Reply ONLY with 3 single-word options separated by commas.\nText: hello w" |
| 160 | +# Forces output like: "world, window, whisper" |
| 161 | +``` |
| 162 | + |
| 163 | +**Low Temperature:** |
| 164 | +```python |
| 165 | +temperature=0.2 # Deterministic, logical completions |
| 166 | +# Not 0.7 which could produce: "world, xyzzzzz, pizza" |
| 167 | +``` |
| 168 | + |
| 169 | +--- |
| 170 | + |
| 171 | +## Customization |
| 172 | + |
| 173 | +### Adjust CPU Threads |
| 174 | + |
| 175 | +Edit `crispy_keyboard.py`: |
| 176 | +```python |
| 177 | +self.predictor = initialize_predictor( |
| 178 | + model_path="./models/phi-3-mini-4k-instruct-q4.gguf", |
| 179 | + n_threads=8 # Change based on your CPU |
| 180 | +) |
| 181 | +``` |
| 182 | + |
| 183 | +**CPU Core Count Reference:** |
| 184 | +- Dual-core (16-bit CPU): `n_threads=2` |
| 185 | +- Quad-core (i5): `n_threads=4` |
| 186 | +- 6-core (R5 5600X): `n_threads=6` |
| 187 | +- 8-core (R7): `n_threads=8` |
| 188 | + |
| 189 | +### Change Model Path |
| 190 | + |
| 191 | +Edit `crispy_keyboard.py`: |
| 192 | +```python |
| 193 | +self.predictor = initialize_predictor( |
| 194 | + model_path="./models/my-mistral-model.gguf", |
| 195 | + n_threads=6 |
| 196 | +) |
| 197 | +``` |
| 198 | + |
| 199 | +### Tweak Inference Parameters |
| 200 | + |
| 201 | +Edit `crispy_llm.py`: |
| 202 | +```python |
| 203 | +def _generate_predictions(self, context_buffer, callback): |
| 204 | + # Adjust these: |
| 205 | + response = self.llm( |
| 206 | + prompt, |
| 207 | + max_tokens=15, # Longer completions (slower) |
| 208 | + temperature=0.2, # Lower = more consistent |
| 209 | + stop=["\n", ".", "!"], |
| 210 | + ) |
| 211 | +``` |
| 212 | + |
| 213 | +--- |
| 214 | + |
| 215 | +## Troubleshooting |
| 216 | + |
| 217 | +### "Model not found" |
| 218 | +- Check `models/phi-3-mini-4k-instruct-q4.gguf` exists |
| 219 | +- Verify file path (should be relative to project root) |
| 220 | +- Confirm file downloaded completely (2.3GB) |
| 221 | + |
| 222 | +### Predictions are slow (>500ms) |
| 223 | +- First prediction is loaded + inference (2-3s normal) |
| 224 | +- Subsequent predictions should be <200ms |
| 225 | +- Reduce `n_threads` if CPU throttling |
| 226 | +- Use smaller model (TinyLlama) for testing |
| 227 | + |
| 228 | +### High CPU usage |
| 229 | +- Phi-3 Mini uses ~1-2 cores during inference |
| 230 | +- Other threads are killed (not accumulating) |
| 231 | +- Normal behavior — predictions complete quickly |
| 232 | +- Close other apps if needed |
| 233 | + |
| 234 | +### Keyboard won't start |
| 235 | +- Check Python version: `python --version` (need 3.8+) |
| 236 | +- Verify llama-cpp-python installed: `pip list` |
| 237 | +- Try running from project directory: `cd /workspaces/crispy-mouse` |
| 238 | + |
| 239 | +### Nonsensical predictions |
| 240 | +- Temperature too high (change 0.2 → 0.1) |
| 241 | +- Model too small (upgrade to Phi-3 Standard or Mistral) |
| 242 | +- Prompt context needs more examples |
| 243 | + |
| 244 | +--- |
| 245 | + |
| 246 | +## Files Modified |
| 247 | + |
| 248 | +``` |
| 249 | +crispy-mouse/ |
| 250 | +├── crispy_llm.py # SovereignPredictor class |
| 251 | +├── crispy_keyboard.py # Integration + callbacks |
| 252 | +├── models/ |
| 253 | +│ └── phi-3-mini-4k-instruct-q4.gguf # Downloaded model |
| 254 | +├── setup_local.bat # Installation script |
| 255 | +├── requirements.txt # llama-cpp-python |
| 256 | +└── LLM_SETUP.md # This guide |
| 257 | +``` |
| 258 | + |
| 259 | +--- |
| 260 | + |
| 261 | +## References |
| 262 | + |
| 263 | +- **Llama.cpp**: https://github.com/ggerganov/llama.cpp |
| 264 | +- **Llama-cpp-python**: https://github.com/abetlen/llama-cpp-python |
| 265 | +- **Phi-3 Models**: https://huggingface.co/microsoft/Phi-3-mini-4k-instruct-gguf |
| 266 | +- **TheBloke GGUF**: https://huggingface.co/TheBloke (quantized models) |
| 267 | + |
| 268 | +--- |
| 269 | + |
| 270 | +**Last Updated:** March 28, 2026 |
| 271 | +**Version:** Crispy Mouse v1.1 Sovereign Release |
| 272 | +**Predictor:** SovereignPredictor (Phi-3 Mini Optimized) |
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