I would appreciate a list of requirements. Does it only work on mac? What kind of terminals can be used?
$ uname -a
Linux hostname 5.2.9-arch1-1-ARCH #1 SMP PREEMPT Fri Aug 16 16:24:43 UTC 2019 x86_64 GNU/Linux
$ git clone https://github.com/wtfutil/wtf
[...]
$ cd wtf
$ make
[...]
$ ./bin/wtfutil
seems to work fine here