Omarchy GameScope Launcher (Release) – Steam Deck–Style Gaming Without Leaving the Desktop

In this video, I finally release the Omarchy GameScope Launcher to the public.

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https://tinyurl.com/supershifts

After months of development, testing, and a lot of trial and error — especially on laptops — this is the finished, production version of the launcher that turns Omarchy into a Steam Deck–style gaming system, without giving up the desktop.

This video shows exactly how it works, how to install it, and what you can realistically expect from it.

⸻

🔹 What This Launcher Does

The launcher installs everything you need for Steam gaming on Omarchy:
• Steam
• Vulkan
• GameScope
• Proton GE
• MangoHud (for overlays)

Once installed, the workflow is simple:
• Super + Shift + S → Launch Steam in a pure GameScope session
• Hyprland shuts down completely
• Steam runs isolated, Deck-style
• Super + Shift + R → Exit and return cleanly to the desktop

No nested compositors.
No mouse issues.
No desktop overhead.

⸻

🔹 Why This Exists

Earlier versions ran GameScope inside Hyprland. That worked — but it caused:
• Input problems
• Mouse capture issues
• Performance overhead

By removing the desktop entirely during launch, you get:

Hardware → Kernel → Wayland → GameScope → Game

Which is exactly how Steam Deck, ChimeraOS, and similar systems work.

⸻

🔹 GPU Support

This public release supports:
• ✅ AMD GPUs – fully supported, no resolution limits
• ✅ NVIDIA GPUs – supported with one important limitation
• ❌ Intel GPUs – not supported in this version

NVIDIA limitation:
GameScope is locked to 2560×1440. Going above that causes visual corruption.
On AMD, higher resolutions work fine.

Intel requires a separate Mesa Git–based launcher, which will be released separately.

⸻

🔹 Laptop & Desktop Behaviour

This version includes new detection logic to handle:
• Desktops
• Laptops
• iGPU + dGPU systems
• External monitors
• Lid open / lid closed states

Laptops were the hardest part of this project, and this is the first version I’m comfortable putting out publicly.

⸻

🔹 External Drives (Big Win)

If you keep games on an external drive:
• The launcher detects Steam libraries automatically
• No re-adding paths
• No re-downloading games
• Perfect for people who reinstall OSs frequently

⸻

🔹 Steam Settings You Should Change

Once logged into Steam (desktop mode first):
• Enable Proton GE for all titles
• Disable pre-shader caching
• Disable frame rate limits in the GameScope overlay

After that, everything behaves exactly like Steam Deck.

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🔹 Games Shown

I don’t benchmark — I just show it working:
• Doom
• Returnal
• ARC Raiders

If it runs on Steam Deck, it will run here.

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🔹 What’s Next

Future additions mentioned:
• Decky Loader integration
• Optional GeForce NOW plugin
• Public GitHub release for people who want to modify it
• Separate Intel-focused launcher

⸻

💬 Final Thoughts

This is the launcher I wanted from day one:
• Desktop when I’m working
• Steam Deck when I’m gaming
• One key to switch between them

No reboots.
No dual boot.
No compromises.

If you’re gaming on Omarchy, this is the cleanest way to do it.

⸻

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