[elyarim]

Add Deckamine to Plugin Store

Deckamine brings Apple-style Vehicle Motion Cues to SteamOS and Linux handhelds (ROG Ally, ROG Ally X, Steam Deck LCD & OLED, Legion Go, Ayaneo, etc.). It displays subtle, animated inertia dots along the screen edges synchronized with vehicle movement (accelerations, braking, turns) to resolve vestibular-visual sensory conflict and prevent motion sickness (kinetosis) while gaming in moving cars, trains, or planes.

Key Highlights

• Zero Impact on Game Performance: Direct imperative DOM transforms with requestAnimationFrame spring physics; zero React re-renders during gameplay.
• Universal Motion Sensor Engine: Automatically detects and reads hardware sensors from both Linux IIO (/sys/bus/iio/devices/ on ROG Ally, Legion Go, Ayaneo) and Steam Deck evdev (Steam Deck Motion Sensors on Steam Deck LCD & OLED).
• Security & Privacy: 100% offline, zero network requests, read-only sensor access, and pointer-events: none overlay that never intercepts touch or controller inputs.
• Customizable: Sensitivity, deadzone, dot size, opacity, color themes, axis inversion, and one-tap neutral calibration.

Task Checklist

Developer

• I am the original author or an authorized maintainer of this plugin.
• I have abided by the licenses of the libraries I am utilizing, including attaching license notices where appropriate.
• Generative AI was NOT used to write a majority of the code I am submitting.

Plugin

• I have verified that my plugin works properly on the Stable and Beta update channels of SteamOS.
• I have verified my plugin is unique or provides more/alternative functionality to a plugin already on the store.

Backend

• No: I am using a custom backend other than Python.
• No: I am using a tool or software from a 3rd party FOSS project that does not have it's dependencies statically linked.
• No: I am using a custom binary that has all of it's dependencies statically linked.

Community

• I have tested and left feedback on two other pull requests for new or updating plugins.
• I have commented links to my testing report in this PR.

Testing

• Tested by a third party on SteamOS Stable or Beta update channel.

[github-actions]

Issues Found

• Neither testing box is present in your description. Please include one of them per the Markdown comment above the testing section.

Next Steps

1. If we found any issues above, please edit your pull request description to resolve them and leave a comment saying you've done so.
2. For the quickest review, please see the Community section of the pull request template for how you can help other developers.
3. Once your description is correct, a maintainer will review your pull request as soon as possible.

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[elyarim]

Updated description to follow template and included testing box.

[github-actions]

This pull request is stale as no updates or testing reports have been posted within the last 7 days. Please ensure you are actively recruiting testers or resolving the issues discussed. If you do not remove the stale label or comment, this will be closed in 7 days. Please close this pull request if you need more time to resolve issues so we can keep our repo healthy.

[elyarim]

This pull request is stale as no updates or testing reports have been posted within the last 7 days. Please ensure you are actively recruiting testers or resolving the issues discussed. If you do not remove the stale label or comment, this will be closed in 7 days. Please close this pull request if you need more time to resolve issues so we can keep our repo healthy.

Hola, quería dejar una actualización para evitar que esta PR quede marcada como stale. He seguido validando Deckamine en SteamOS y estoy recopilando/adjuntando el informe de pruebas del test realizado por terceros. El plugin sigue funcionando correctamente en el canal Stable/Beta y estoy trabajando en resolver cualquier comentario o feedback que aparezca. También estoy buscando más testers para validar la experiencia en otros dispositivos compatibles (ROG Ally, Legion Go, Ayaneo, etc.). Gracias por su paciencia y por mantener el repositorio saludable.

[github-actions]

This pull request is stale as no updates or testing reports have been posted within the last 7 days. Please ensure you are actively recruiting testers or resolving the issues discussed. If you do not remove the stale label or comment, this will be closed in 7 days. Please close this pull request if you need more time to resolve issues so we can keep our repo healthy.

[elyarim]

This pull request is stale as no updates or testing reports have been posted within the last 7 days. Please ensure you are actively recruiting testers or resolving the issues discussed. If you do not remove the stale label or comment, this will be closed in 7 days. Please close this pull request if you need more time to resolve issues so we can keep our repo healthy.

Thanks for the heads-up. I’m still actively working on this and recruiting additional testers. I’ll post an updated testing report and address any outstanding feedback soon.
Please keep the PR open for now — I don’t need to close it. If there are any specific issues you’d like me to resolve first, let me know.

[elyarim]

Hey! I noticed this PR got marked as stale, but it’s still active and I’d appreciate a fresh review when you have a chance.

If there’s anything missing from my submission or anything I should update to help move this forward, please let me know and I’ll take care of it.

[Tormak9970]

@elyarim Code looks good, just a few things:

• Could you clarify what Copilot was used for
• Not required at all but I'd suggest splitting up your frontend code into a few files

[elyarim]

@elyarim Code looks good, just a few things:

• Could you clarify what Copilot was used for
• Not required at all but I'd suggest splitting up your frontend code into a few files

Thanks for the review, @Tormak9970!

Copilot usage: Copilot was used only for limited assistance (small wording/snippet suggestions and iteration support). It was not used to generate the majority of the code. The core implementation, architecture decisions, sensor integration logic, and validation/testing were done by me.

Frontend split: I split the frontend into separate modules (store.ts, rpc.ts, types.ts, DotOverlay.ts, GlobalMotionOverlay.tsx, SettingsPanel.tsx), and index.tsx now only registers the plugin. The behavior is unchanged and the build passes. Commit: elyarim/Deckamine@5a9a2da

I'll update the plugin entry to point to this commit and resolve the merge conflicts shortly.

[Tormak9970]

Looks good to me! Thanks for cleaning up the frontend and clarifying

[sidharthify]

LGTM.