Thanks very much for this nice update, especially for supporting modern controllers.
Is there any chance you could offer a portable .zip or .7z archive of the game for download, without an installation process (unzip to folder and play)? I ask so that it would be easier to play on Steam Deck, where we could add custom artwork and use Steam Input to modify our control layout.
EDIT:
After getting through the install and tinkering around with the resulting compatdata folder, I suspect it will actually require a Linux-specific version of DOSBox to be employed in order for this game to be playable on Deck. Windows DOSBox games just don't work without a custom-made exe file.
I now remember running into this obstacle many times in the past when trying to run my GOG DOSBox games on Deck. The problem being that Windows .bat files can't be run through Proton, obviously since they contain Windows-specific command strings.
So, unfortunately it won't be as simple as just packing all the game files into a portable archive, but also unfortunately I don't know enough about Linux to make a Deck-suitable version of the game myself. If anyone reading this does have the brains and motivation to take a crack at it, I would be deeply grateful.