Problem when trying to Install Chruby, Terminal Issue

I am trying to install and use Chruby to install Jekyll as stated in the Jekyll site. However, when I run the command

"source $(brew --prefix)/opt/chruby/share/chruby/chruby.sh" >> ~/.zshrc

I get the following error:

zsh: no such file or directory: source /opt/homebrew/opt/chruby/share/chruby/chruby.sh

I am not good at all these Terminal operations, so can someone please guide me through the process or what may be going wrong step by step? Thanks.

I checked whether I had installed chruby, and it said I did. I installed everything with Homebrew and all the files installed correctly.