It is mentioned when you download it (under the "Download and install instructions from Labbed" section) and also on my website download page (http://labbed.net/software/labchirp/). However, it should probably be mentioned on the itch.io page as well! And perhaps in the manual.
I did not know it works with Wine! I've tried it before (several years ago) and it didn't work, which is why I tell people to use Mono. I will give it another try with the newest version and see how it works. Thanks for letting me know!
Good luck with your future game projects! And have a nice day!