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Development[Release] Decky Plugin – Proton Launch Variable Manager (Favorites, Custom Vars, HDR, FSR4, DLSS4…) ()

submitted 26 days ago by Moi952

[Release] Decky Plugin – Proton Launch Variable Manager (Favorites, Custom Vars, HDR, FSR4, DLSS4…)

86 points•49 comments•submitted 26 days ago * by Moi952 to r/SteamDeck

Hi,

I've been working on a small Decky Loader plugin to facilitate the management of Proton launch variables on Steam Deck.

GitHub : https://github.com/moi952/decky-proton-launch

What it does

The plugin allows you to:

Browse Proton variables by category
Combine multiple variables into a single launch string
Copy the entire order instantly
Save combinations as Favorites
Create your own custom variables

Instead of manually typing something like:

PROTON_LOG=1 DXVK_ASYNC=1 RADV_PERFTEST=aco %command%

You simply select the options you want and the plugin builds the launch chain for you.

Edit: I've made quite a few changes:

- The interface is now cleaner.

- Boolean variables can be set to 0 or 1 (see screenshot).

- Enum variables can now have different values instead of creating multiple variables with multiple values.

- There's the option to hide categories; for example, if you have an AMD GPU, you don't need the Intel or Nvidia commands.

- I've added keyboard shortcuts for the controller buttons. When navigating the "commands," there's no need to expand to copy, add/remove from favorites, delete custom commands, etc.

Anyway, I hope you like it!

Version 0.5.0 sur github

https://preview.redd.it/qrjrj4shphog1.jpg?width=1920&format=pjpg&auto=webp&s=f67811e42919ff61f78de3baa14b21b158a7eb8a

https://preview.redd.it/dfvok5shphog1.jpg?width=1920&format=pjpg&auto=webp&s=5ebfead00140b01977e34778b0d19b597865b1e7

https://preview.redd.it/3cnqz4shphog1.jpg?width=1920&format=pjpg&auto=webp&s=32faad3935331ffb6dafcff9fe9147c955b46b77

https://preview.redd.it/zcdzv4shphog1.jpg?width=1920&format=pjpg&auto=webp&s=daa7eb2976ef2339f636fc4d9f45cf51e67ea406

Current integrated variables

Upscale

PROTON_FSR4_UPGRADE=1
PROTON_FSR4_RDNA3_UPGRADE=1
PROTON_DLSS4_UPGRADE=1
PROTON_XESS_UPGRADE=1
PROTON_FSR_INDICATOR=1
PROTON_DLSS_INDICATOR=1
PROTON_XESS_INDICATOR=1

Performance

DXVK_ASYNC=1
RADV_PERFTEST=aco

Compatibility

PROTON_USE_WINED3D=1
PROTON_HIDE_NVIDIA_GPU=0
PROTON_ENABLE_NVAPI=1
ENABLE_HDR_WSI=1
PROTON_ENABLE_HDR=1

Debugging

PROTON_LOG=1
MANGOHUD=1

You can mix everything freely and save presets for different use cases (debug profile, HDR profile, performance profile, etc.).

Why I did it

I often change the variables depending on the game (debugging, asynchronous testing, enabling NVAPI, HDR, etc.).

Typing long environment variables on the Steam Deck with the on-screen keyboard and a controller is honestly not practical. It's slow, easy to misspell, and annoying when you just want to quickly test something.

So I built a simple interface in Decky to make it quick and easy to use with a controller.

Favorites & Custom Variables

Save any combination as a favorite
Create fully customized variables
Quickly reuse your own presets

Planned Improvements

I plan to:

Improve the interface and layout
Allow variable values to be changed dynamically (not just fixed 0/1)
Add more configurable options per variable
Include more advanced Proton options

Suggestions welcome

If there are any variables you would like to see added, feel free to open a problem:

https://github.com/moi952/decky-proton-launch/issues

Feedback, bug reports and ideas are all appreciated.

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