This is still super rough, but it installs reliably enough that it's sharable.
You must have decky loader already installed, if you don't know how to do this, it's too early for you to try this plugin. The scripts are still rough and contains development testing code, please excuse this for now.
Download the installer.
Run the installer from desktop mode
once the installer finishes open Konsole
conda activate base
pip install chardetOnce that is done you should be able to restart into game mode and find the junk store in the decky menu.
While it does work on linux, I'm not going to support it at this stage, if you're keen and want to script dive you might be able to figure it out.