A ultra-lightweight video wallpaper engine optimized for low-spec computers (2GB RAM). Run smooth animated wallpapers without lag, stuttering, or excessive CPU/GPU usage—even on decade-old laptops.
Perfect for:
- Old laptops / budget PCs
- Office computers with strict spec limits
- Users who want beautiful wallpapers without performance cost
- Anyone tired of static wallpapers
Looking for a way to share your PC's internet to your Android phone without root or messy CMD commands? Meet YunuUSBNet — our newest ultra-lightweight Windows reverse-tethering GUI, powered by Gnirehtet + ADB.
⚡ Live dual-unit speedometer • 🪖 Cable-shake-proof connection • 🪶 Runs on just 3-8MB RAM
- 🎯 Code Refactoring & Core Efficiency: Stripped down and refactored bloated code into an ultra-lean structure. Drastically reduced unnecessary variables to minimize overhead and maximize execution efficiency.
- ⚡ Enhanced Wallpaper Optimization: Upgraded the wallpaper optimization algorithm for lightning-fast speeds. Re-engineered the process to be as lightweight and efficient as possible on system resources.
- 🖼️ Asynchronous UI Thumbnail: Fixed preview rendering lags by offloading the task entirely to the background. Runs fully asynchronously to guarantee a smooth, freeze-free GUI experience during thumbnail loads.
- 🎯 Smart Aspect Ratio (Bangkit Scale Ported): The core feature from Linux is now on Windows! Automatically detects video resolution via background FFmpeg, applying perfect scaling/cropping to fit 1:1 or 21:9 videos flawlessly without distortion.
- ⚡ Dynamic Turbo Compression: Goodbye rigid 960x540. Turbo Compression now uses smart proportional scaling (
960:-2) to shrink file size while perfectly locking the original aspect ratio. - 🧠 Smart CPU Threading: The engine now reads your PC specs, automatically detecting total CPU cores/threads and reserving 1 exclusive thread for the OS to prevent freezes during heavy compression.
- 🖼️ Asynchronous UI Thumbnail: Added an instant 320x180 thumbnail preview with black padding to prevent stretched images. Runs asynchronously so the GUI never freezes during loads!
- 📝 Automated System Logging: Introduced
engine_log.txtfor real-time activity tracking, bug detection, and physical verification of video files and Windows Startup Shortcuts. - 🛠️ Crucial Bug Fixes: Fixed persistent video scaling issues, resolved locked optimize buttons, patched
$CmdLineRawparsing for folders with spaces, and stabilized MPV forced shutdowns during resets.
- 🎯 Smart Auto-Scale Monitor: Automatically stretches 1:1 square videos and seamlessly crops/fits 20:9 or 21:9 ultra-wide wallpapers to match 16:9 displays.
- 🛠️ Crucial Bug Fixes: Resolved X11 aspect ratio lock issues, improved watchdog loop, and fixed binary thread execution.
- 🪶 Ultra-Lightweight Footprint: Engine binaries optimized to the absolute smallest footprint possible with minimal RAM and CPU overhead.
- 📊 Real-time Progress Indicator: Smooth compression progress bar integration powered by YAD.
🛠️ Note for Linux Users:
The Linux build is currently under active development and continuous optimization. We are actively refining the core scripts to deliver the best performance possible for low-spec hardware. Stay tuned for further updates!
- 🎯 Balanced CPU/GPU Usage - Smart optimization prevents thermal throttling and maintains system stability
- 💾 Ultra-Low RAM Usage - Runs smoothly on 2GB RAM systems (yes, really)
- ⚡ Fast Startup - Lightweight codebase means instant launch
- 🎬 Automatic Wallpaper Optimization - No matter how heavy your video is, it gets optimized automatically
- 🚀 Auto-start on Boot - Wallpaper runs automatically every time you start Windows
- 📦 Portable Format - No installation needed. Extract and run. Can even run from USB.
- 🗜️ Compressed Size - Entire engine fits in a small file
| Feature | YunuWallEngine |
|---|---|
| File Size | ~70MB |
| RAM Usage | 3-30MB |
| CPU Usage | 2-5% |
| GPU Usage | Adaptive |
| System Requirement | 2GB RAM minimum |
| Portable (No Install) | ✅ Yes |
| Video Support | MP4, AVI, WebM |
| Customization | Good |
| Price | 🆓 Free |
Bottom Line: YunuWallEngine is for users with older PCs who want animated wallpapers without the performance cost.
- CPU: Dual Core 2.0 GHz (Intel i3 2nd Gen or equivalent)
- RAM: 2GB
- GPU: Integrated graphics
- OS: Windows 7, 8, 10, 11
- CPU: Intel i3 3rd Gen or higher
- RAM: 4GB+
- GPU: Dedicated graphics (optional)
- Download
YunuWallEngine_V1.0.rarfrom Releases - Extract using WinRAR, 7-Zip, or Windows built-in extractor
- Open the extracted folder and run
YunuWallEngine.exe - Select your video wallpaper (.mp4) and click Apply
- Download
YunuWallEngine_Linux_V1.0.zipfrom Releases - Extract the archive inside your File Manager (Thunar, Nemo, or Nautilus)
- Open the extracted folder, right-click on the
YunuWallEnginefile (the executable binary), and select Execute or Run - Select your video wallpaper (.mp4) and click Apply
💡 Tip for First-Time Users:
If the "Execute" option doesn't appear on your first launch, open a terminal in that folder once and type:chmod +x YunuWallEngineto grant executable permission. After that, you can close the terminal and just double-click the file forever!
.mp4(Recommended).avi.mkv.webm.mov
- Use HD (1080p) or lower resolution videos
- Videos between 30-60 seconds work best
- Keep videos under 100MB for smooth playback
- Reduce GPU usage: Go to Settings → GPU Mode → "Balanced"
- Automatically converts heavy wallpapers to optimized format
- Reduces frame rate if system can't handle it smoothly
- No manual tweaking needed
- Smart switching between CPU and GPU rendering
- Prevents thermal throttling
- System stays cool even during summer
- Once enabled, wallpaper loads automatically on startup
- Zero manual intervention
Testing on Intel i3 2330m + 4GB RAM:
| Tool | RAM | CPU | Temp |
|---|---|---|---|
| YunuWallEngine | 45MB | 3% | 45°C |
| Wallpaper Engine | 180MB | 12% | 55°C |
YunuWallEngine is 4x lighter than Wallpaper Engine!
Q: Wallpaper not showing?
- A: Restart Windows or run the app again. Wallpaper needs to be in supported format.
Q: High CPU usage?
- A: Enable "Auto-Optimization" in settings. Reduce video resolution.
Q: Crashes on startup?
- A: Update your GPU drivers or disable GPU mode (use CPU instead).
Q: Can I use videos from YouTube?
- A: Download them first using tools like yt-dlp, then convert to MP4.
- Report a Bug: Open an Issue
- Ask Questions: Use Discussions
- Share Wallpapers: Check out community shared wallpapers in Discussions!
Other
YunuP-Dev
Built for people with old computers who still want pretty things.
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