The Font Book (available 10.3) application allows you to install fonts into ~/Library/Fonts, /Library/Fonts, or /System Folder/Fonts. You do this by selection for me only, for all users of this computer, or for Classic Mac OS respectively.
If you are logged in as a Normal user and try to install fonts into a multi-user folder, you are asked to authenticate.
it is still possible to host your sitemap on external S3 buckets. You must set up a subdomain of your domain pointed as an Alternative Domain Name for your CloudFront distribution, and in order to do this you must go through domain verification with AWS.