...In these cases, users should use RVM or rbenv to install a supported Ruby version and use that version's gem binary to install tmuxinator. tmuxinator uses your shell's default editor for opening files. If you want to change your default editor simply put a line in ~/.bashrc that changes it. The recommended version of tmux to use is 1.8 or later, with the exception of 2.5, which is not supported (see issue 536 for details). Your mileage may vary for earlier versions. Refer to the FAQ for any odd behaviour. Your distribution's package manager may install the completion files in the appropriate location for the completion to load automatically on startup.