I tried installing zsh-autosuggestions, but the build fails in three places on the same file when running rspec, all with the same discrepancy:
>        expected: "echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"

I'm including the full log as well.

Thanks,

Zacchaeus Scheffer