# the usual neXt documentation

Find product guides and technical explanations from the usual neXt. Start with TholusOS for media playback, immersive projection, education and AI workflows.

Canonical: https://docs.theusualnext.com/en/
Updated: 2026-10-22
Publisher: the usual neXt

## Product documentation

Find setup instructions, everyday workflows and troubleshooting within each product's collection. TholusOS is the first collection available here, covering immersive venues, classroom experiences and the tools used to run them.

### [TholusOS](/en/tholusos/)

Operate an immersive venue: play media, prepare school lessons, calibrate projection and connect AI tools.

Topics: Media playback, Projection, Education, AI & MCP.

## Understand the technology

Technical guides explain how formats, projection and playback work, with examples you can use when planning an installation or preparing content. Start with the principles, then follow the relevant product instructions for the controls available to you.

- [Fulldome, domemaster and equirectangular video](/en/learn/fulldome-360/): choose a source format and understand how it maps onto a dome.
- [Video delivery checklist](/en/learn/media-server-video-checklist/): check encoding, frame rate, audio and playback before a venue session.
- [Projector edge blending](/en/tholusos/projection/edge-blending/): understand overlap, light attenuation and visible seams.
- [Black-level compensation](/en/tholusos/projection/black-level/): diagnose bright overlap areas in dark scenes.

## Apps, services and support

The [software catalogue](https://www.theusualnext.com/en/apps) introduces our applications and their current availability. For immersive spaces, interactive systems and bespoke projects, explore [the usual neXt services](https://www.theusualnext.com/en/specialist-services). Product information and service enquiries remain available there while documentation collections grow here.

For help with a guide, [contact the team](https://www.theusualnext.com/en/contact) with the page URL, product version and the step you are working through. This gives us the context needed to investigate your question or correct an instruction.

[Read how these guides are maintained](/en/about/).