Git commit signing - can't find op-ssh-sign

I have followed the https://developer.1password.com/docs/ssh/git-commit-signing for setting up git commit signing.

In https://developer.1password.com/docs/ssh/git-commit-signing#step-1-configure-git-commit-signing-with-ssh, step 2 tells me to click the three dots and select Configure Commit Signing and shows a screenshot of the window you should see.

I do not have that option in my three-dots menu when viewing my SSH Key:

I also found https://youtu.be/BMFvhl0WRFQ, which shows a Next Step: Sign Your Git Commits message when viewing an SSH Key in 1Password. But I don't see this message either.

Instead, I used the config from https://developer.1password.com/docs/ssh/git-commit-signing#configure-multiple-commit-signing-setups and manually entered it into my .gitconfig.

But when I try to commit a change, I get the following error:


fatal: cannot run /Applications/1Password.app/Contents/MacOS/op-ssh-sign: No such file or directory


Looking in the MacOS directory, there is only one file in there called 1Password.

Any ideas?

1Password Version: 8.8.0
Extension Version: 2.3.7
OS Version: macOS 12.5.1
Browser:_ Chrome