The Retro Mainframe recreates a 1980s computer terminal — green-and-amber phosphor, curved-glass scanlines, tape-reel activity and slow, deliberate boot text. It is the look of vintage sci-fi and old war-room computers, for when you want a lo-fi “hacker” aesthetic rather than a modern HUD.
What you can do with it
- Green-screen-friendly footage for retro or period video projects
- A calm, characterful terminal backdrop for streams and coding-vibe videos
- A convincing “old system” prop for films and photography
How to use Retro Mainframe
Open Customize to set the colours, title and behaviour, then press Fullscreen (or add ?present=1 to the URL) for a clean, controls-free screen. To run it unattended on a stream, copy the OBS browser-source URL; to drop it into a web page, use the <iframe> embed. Everything is a visual prop — no real hacking, network or data.
Can I record this over a green screen?
Yes. The high-contrast phosphor text keys cleanly, and there is a full-screen presentation mode with no toolbar — see the green-screen guide.
Is it actually connecting to a mainframe?
No. The boot sequence, prompts and output are all scripted fiction. Nothing is transmitted or received.