MoinMoin supports a lot of access control features.

Because people download binaries from the MLton web site, and we are worried about malicious users either changing those binaries, or changing the links that should point at those binaries, we allow editing of some pages (in particular, Home, Download, Experimental, and ReleaseYYYYMMDD pages) only by TrustedGroup members.

All other pages are freely editable by any user with an account.