MOONDECK

A plugin that lets you play any of your Steam games via Moonlight without needing to add them to Sunshine first, providing a similar experience to GeForce GameStream or Steam Remote Play.

What is it really?

MOONDECK is an automation tool that will simplify launching your Steam games via the Moonlight client for streaming. It simplifies the launch of a specific game to a single click, similar to how Steam's Remote Play feature works.

It requires an additional lightweight app to be installed on the host PC - MoonDeck Buddy. Additional one-time setup instructions can be found within the settings page of the plugin itself.

Why would I need it?

Game streaming via Moonlight, by DEFAULT, follows these steps:

1. Open moonlight as an application on the steam deck
2. Select a Host machine to stream from
3. Select an application to stream, usually steam Big Picture Mode (BPM)
4. Select a game via BPM interface
5. Selected Game is launched

Game Streaming via MOONDECK follows these steps:

1. Press MOONDECK button on game to stream within SteamDeck's OS
2. Selected Game is launched via moonlight stream

MOONDECK sets configurations ahead of time and skipping many of the steps each time a stream is started. This allows a streamlined experience of selecting a game directly from the steam deck's OS and immediately starting the game stream.

More importantly, the Moonlight, by DEFAULT, method caused SteamDeck's OS to ONLY see Moonlight as the running application, rather than any specific game. This created a few problems, such as:

• game-specific community controller profiles cannot detect the currently streamed game, preventing them from being downloaded or viewed
• controller settings are tied to the overall Moonlight application, requiring manual reconfiguration when switching between streamed games
• performance profiles are linked to the Moonlight application, also requiring manual reconfiguration when switching between streamed games
• steam game guides for a streamed game cannot be found

MOONDECK fixes this issue by adding a button to each game within the Steamdeck's OS to launch directly into a moonlight stream with Steam's specific game title ID # associated for the running application in SteamDeck's OS.

The result is that per streamed game community controller profiles automatically associate, can be downloaded, and modified and performance profiles via the QAM can be created, saved, and modified

Note: Unfortunately, steam game guides are not working yet

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For Devs

Building

1. Clone this repo to the ~/homebrew/plugins.
2. Install pnpm via npm npm install --global pnpm.
3. Run pnpm install in the cloned repo directory.
4. Build using pnpm run build-dev for local build.

Internal data

This plugin stores data in the following directories:

• Settings - /home/$USER/.config/moondeck/settings.json
• Backend logs - /tmp/moondeck.log
• Runner logs - /tmp/moondeck-runner.log
• Moonlight logs - /tmp/moondeck-runner-moonlight.log

Additional frontend logs are written to the web console.

License

This is licensed under GNU GPLv3.