SteamOS NVIDIA Image Builder
Official recovery image in.
Validated NVIDIA image out.
A local desktop workflow for exact-kernel NVIDIA resolution, isolated SteamOS image mutation, independent verification, and safe image or USB export.
OPEMOS.EXE is the graphical companion to OPEMOS. The application owns the host, image, appliance, and export boundaries; OPEMOS owns NVIDIA compatibility, artifact, userspace, and offline-installation contracts.
Active development: structural image mutation is not the same as a certified hardware boot. Preserve the original Valve image and read the trust label on every result.
Application preview
Choose your path
| Goal | Start here |
|---|---|
| Build from an official recovery image | Getting started |
| Diagnose hardware or recover from an update | Hardware and update recovery |
| Understand seamless backend updates | Stable shell and updateable services |
| Understand every stage and trust label | Build workflow |
| Prepare appliances and run tests | Developer guide |
| Review process and data boundaries | Architecture |
| Understand authentication and failure policy | Security |
| Diagnose a failed or apparently stalled build | Troubleshooting |
What the app owns
- Official-image selection and signature-based format detection
- Cancellable normalization, hashing, and host-space preflight
- Native and x86_64 Fedora appliance lifecycle
- Read-only source attachment and disposable overlay mutation
- Exact OPEMOS artifact and installer pinning
- Structured progress, diagnostics, cancellation, and cleanup
- Independent final-image inspection
- Image export and fail-closed removable-media writing
What remains
Physical NVIDIA hardware boot, Valve installer propagation, SteamOS A/B update behavior, Secure Boot policy, Windows USB authorization, and hardware-bound certification attestations remain explicit roadmap gates.