Thanks, that helps. I'll be pushing a new release today which should resolve the crashes. I'll look into the library problem also.

That is not expected behavior, no. How did you install it? Through a package? Or did you build from source?

There is currently problems with the way fooyin and fooyin-bin in the AUR are packaged which has been leading to crashes when trying to add tracks. I'm attempting to get that resolved.

Very close! Name is based on the Chinese 福音 (fúyīn) meaning good news, with foo coming from foobar as you correctly deduced.