1. Introduction

BUO Streaming is a tool to manage and play fulldome content in digital planetariums. It provides access to copyrighted videos, both via streaming and temporary downloads (maximum 3).

2. System Requirements

Windows: 8.1, 10 or 11 (64 bits), minimum 4 GB RAM, internet connection.

macOS: High Sierra 10.13 or later, minimum 4 GB RAM, internet connection.

3. Installation

Download the app with an active subscription account. Windows: enable installation of unregistered apps. macOS: you may need to allow it in Preferences > Security and Privacy.

4. Main Interface

· Logo → returns to the main catalog.
· EXTERNAL VIDEOS button → plays user’s fulldome videos.
· STELLARIUM button → launches Stellarium.
· MY PROGRAM button → access to user’s selection.
· DOWNLOADS button → temporary downloads - offline.
· CLOSE APP BUO button → closes the app.
· Multi-language according to system settings.

5. Playback and Download

Each video has a "DOWNLOAD" button. Once downloaded, it will appear in MY DOWNLOADS as "DOWNLOADED".

· Maximum 3 active downloads. Exceeding this requires restarting the app.
· Videos are deleted after 6h or when the app is closed.
· Player supports windowed and full screen mode.

6. Offline Mode

Downloaded videos work offline for 6h, keeping the App open in the Downloads section.

7. Security and Restrictions

· Screen recording and video call programs (OBS, Zoom, Teams, Skype, etc.) are blocked. If detected, the App shows a warning and may close automatically.
· If you switch apps, minimize the window, or the App loses focus → video pauses and the App closes within seconds.
· Anti-copy protection: prevents screenshots or recordings.
· Blocked keys: PrintScreen, Ctrl/⌘ + C/V/P/S, F12 (DevTools), Windows/Command key. Pressing these keys will close the App.
· Right-click on videos is disabled.

8. Best Practices

· Avoid running background programs.
· Do not download unnecessary movies.
· Do not share your license with third parties.

9. Common Warnings

"Outdated version": update the App from the official website.
"App blocked by capture software": close the software.
"Error downloading video": check connection, RAM and disk space.

10. Privacy and Data Protection

BUO App does not access personal data, does not use cookies or trackers. It does not modify or access user files, does not install additional software and does not collect personal data. It is 100% safe. You must meet the minimum installation requirements and follow the recommendations in this manual.

11. Update

When a new version is available, download it from our official website. The App does not update automatically. An outdated version will stop working until replaced.

12. Frequently Asked Questions (FAQ)

What happens if I close the App with downloaded videos? They are automatically deleted.
What if the App doesn’t start because of capture software? Close those programs before launching BUO.
Can I use the App on multiple computers? Yes, with the same active license (not simultaneously).

13. Keyboard Shortcuts

· ESC: exit full screen.
· Space: pause/resume video.
· F: toggle full screen.
· Numpad (0–9): works as space bar.

14. External Video Playback

Besides streaming content, BUO allows loading external or warped fulldome videos from the user. Useful to avoid closing the App (to keep downloads active).

· Recommended formats: MP4 (H.264) or other supported.
· Recommended resolution: 2K - 4K fulldome.
· Access through the "Open external video" button.
· These videos are not deleted nor restricted. The function simply plays the video to keep the App active.