That still results in the same issue, but gives me the love executable, and trying to launch the demo with it, I briefly get a window with a message saying that the version is incompatible, and then this error to terminal:
conf.lua:7: attempt to index field 'window' (a nil value)
This game was made for a version that is probably incompatible.
The game might still work, but it is not guaranteed.
Furthermore, this means one should not judge this game or the engine if not.
I ran ldd on demo-repete, which gave me:
linux-vdso.so.1 => (0x00007f885ec4b000)
liblove.so.0 => not found
libluajit-5.1.so.2 => not found
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f885e85e000)
So it looks like both the Lua and Löve needs to be packaged with it for it to work on my machine. I opened up the .deb to take a peek at your control file and it doesn't list any dependencies, so that needs to be fixed for it to work. That said, I think it might be easier to just make a tarball of the dependencies, the executable and a launcher script.