Hi @gtramontina,
Thanks so much for creating ghooks, our team use it every day and find it really useful.

There's one small issue though regarding support for GUI Git Clients such as Tower;

Searching for a fix, it looks like similar projects have also had this problem.

(I don't think this is environment related, but some output if needed)

$ /usr/bin/env node --version
v0.12.0

$ which node
/usr/local/bin/node

$ echo $PATH
/Users/jmason/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin

I hope this is useful, thanks.