Sorry for the vague title.
I am currently trying to make a desktop executable for a program called FLASHGBX on my steam deck (in desktop mode, of course).
The official repo says to start a terminal window from within the folder it has been installed to, which for me is "/home/deck/applications/FlashGBX", then use the following commands
source FlashGBX_venv/bin/activate
python3 -m FlashGBX
which will then launch the program.
I have done this, and everything is installed properly. All I want is for a desktop link to be able to open this application without me having to manually type this every time, and that's all. Preferably, I would have so the terminal itself isn't visible while this is all happening.
Thing is I have NO IDEA how to actually do this. I'm coming from windows, and even then I can barely cobble together a .bat file. I have NO IDEA how to properly make an executable or desktop entry. Trying to search any of this up has been a headache.