Seems like some apps where quite locked by macos, couldn't even do a `sudo ln -s test /Applications/Calendar.app`. Solved it by:
- Drag Calendar.app a new folder (it will create an alias (see tiny arrow in corner of app icon), the actual app will remain)
- In alfred preferences, under features -> default results, drag the folder to "Search scope"
- Higher up, in the "extras" section, hit "Advanced...", and drag the alias into the window
Alfred will now find the Calendar.app alias when searching for "cal" (etc), which in turn will open the actual calendar app.
