OpenWritr v0.2.0 - Native Rust Build

OpenWritr v0.2.0 — Native Rust Build for Windows on ARM

Single ~22 MB distribution, no Python runtime, models downloaded on first launch from Hugging Face.

Install

1. Download openwritr-windows-arm64-v0.2.0-dev.zip below.
2. Extract anywhere (e.g. C:\Program Files\OpenWritr\).
3. Run openwritr.exe. First launch downloads the Parakeet TDT v3 model (~670 MB) from Hugging Face into %LOCALAPPDATA%\OpenWritr\models\.
4. Hold Ctrl + Win + Space, speak, release. Text is pasted at the cursor. Right-click the tray icon for Settings….

Highlights

• ~6.4 MB openwritr.exe (was ~300 MB Python in v0.1)
• ~30 MB cold-start RSS (was ~700 MB)
• 25 languages via NVIDIA Parakeet TDT 0.6B v3 (INT8 CPU, ~140 ms / 11 s)
• egui Settings dialog with hotkey + engine + LLM cleanup configuration
• Warm start/stop tone cues
• Optional cleanup pass via GitHub Copilot (uses gh auth token) or any OpenAI-compatible endpoint (hold Alt with hotkey)
• Reliable hotkey FSM with safety auto-stop on modifier release

Known limitations vs v0.1 (Python)

• NPU backends fall back to CPU INT8 in the native build. The ort Rust crate 2.0-rc.10 does not expose RegisterExecutionProviderLibrary, so we cannot load Qualcomm's onnxruntime_providers_qnn.dll the way Python ORT does. The Python v0.1 app (python/ folder) remains the NPU-capable reference.
• No animated overlay yet — tray icon colour change is the visual state feedback. Coming in v0.3.

Licenses

• OpenWritr source: MIT
• NVIDIA Parakeet TDT 0.6B v3: CC-BY-4.0
• istupakov Parakeet ONNX export: CC-BY-4.0
• ONNX Runtime: MIT
• Qualcomm QNN runtime DLLs (bundled): Qualcomm proprietary