Search in Craft document with Craft Search Index.
Download
the latest release,
double-click it and proceed with Alfred instructions.
Use amd64 for Intel chips and arm64 for M1 chips.
Run cs <query> to look for documents.
It opens the page with the result.
The first time you use the workflow after install or update, you will see the security warning:
This is a quirk of MacOS 10.15 and above.
After seeing this warning, you have to go to
System Preferences > Security & Privacy > General
and click the new button that has appeared to allow the executable to run.
You then have to run it again, and you will see this security warning again,
but now it will have a new button that lets you allow the executable to run.