Yep. I shipped Tokaido and people use it. It was mentioned on Ruby Weekly last week.

You can get releases at https://github.com/tokaido/tokaidoapp/releases. Andres (who now maintains the project) released Tokaido for Ruby 2.1 (with support for Mavericks) recently and we're working on Ruby 2.2 support as we speak.

The org is here: https://github.com/tokaido/ and there are a number of auxiliary projects (muxr and tokaido-dns are the big ones) that I developed separately along the way.