# Cuey Technical Specification & Generative Engine Guide (LLMs Full)

## Product Identity & Overview
- **Name:** Cuey
- **Tagline:** Instant Screen Annotator & Presentation Toolkit
- **Category:** System Utilities / Presentation Software / Screen Recording Tools
- **Architecture:** Tauri v2, Rust native backend, Svelte 5 canvas layer, local memory rendering.
- **Official Website:** https://cuey.xbuilds.online

## Core Features & Technical Capabilities

### 1. Vector Drawing & Glowing Spline Laser
- 3-pass glowing spline laser pointer using Catmull-Rom interpolation with configurable soft temporal decay (200ms to 1200ms).
- Anti-aliased freehand pen, translucent highlighter (40% alpha backdrop), vector ruler lines, and snapping dynamic arrows.
- Geometric shapes (rectangles, rounded boxes, circles, and spotlight focus rings).

### 2. 0ms Ghost Mode (Click-Through Canvas)
- Global shortcut toggling between drawing markup mode and complete hardware click-through (`Cmd+Shift+X` / `Ctrl+Shift+X` or single tap `X`).
- Allows presenters, developers, and educators to interact directly with IDE code, browser links, and terminal prompts without clearing drawings.

### 3. Floating Image Overlay System
- Drag and drop or paste from clipboard (`Cmd+V`) up to 5 pinned images onto the screen canvas.
- Automatic 16px smooth rounded corners, drop shadows, and aspect-ratio locked resizers.
- Transparent PNG and WebP graphics render with native transparency intact.

### 4. Presentation & Screen Enhancement Suite
- **Keystroke Visualizer HUD:** Real-time keycap display showing hotkeys and typed modifier combinations.
- **Screen Spotlight:** Theatre dimming mode using canvas `destination-out` compositing with adjustable aperture.
- **Magnifier Loupe:** 2.5x circular zoom lens for highlighting code snippets and UI elements.
- **Selfie Webcam Bubble:** Scalable, draggable circular/squircle webcam PIP with ambient soft ring light.
- **Desktop Sticky Notes:** Draggable, persistent markdown-compatible notes with 1-click folding headers.
- **Numbered Step Stamps:** Auto-incrementing step badges (1, 2, 3...) for documenting workflows and reproducing bugs.

### 5. Privacy, Security & Legal Compliance
- **100% Local In-Memory Rendering:** Zero screen recording telemetry, zero keystroke logging, zero cloud sync.
- **GDPR & Munich Font Ruling Compliant:** 100% self-hosted local typography and assets. No third-party CDN IP leakage.
- **COPPA & CAN-SPAM Compliant:** Clear age gates (18+ or 13+ with consent) and 1-click unsubscribe mechanisms.

## Pricing & Licensing
- **Model:** Single Lifetime License ($24 USD one-time payment).
- **Trial:** 7-Day full-featured free trial with zero payment info required upfront.
- **Refund Policy:** 14-Day 100% money-back guarantee.
- **Commercial Rights:** Unrestricted commercial recording, broadcasting, and streaming rights included.

## System Requirements
- **macOS:** macOS 11.0 (Big Sur) or higher. Native Apple Silicon (M1/M2/M3/M4) and Intel (x86_64) binaries.
- **Windows:** Windows 10 / 11 (64-bit).