Downloading MachCMS 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Internet & Network Tools, more precisely General. We recommend checking the downloaded files with any free antivirus.
From the developer:
An easy to use, flexible way to manage a Web site. It has requirements other than what comes with OS X. It's not meant for someone who doesn't want to do any work though as you need to write your own template (requires HTML knowledge) and static pages are written using PHP syntax. Although if you use the WIKI features you can write your pages using a rich text editor (not Safari compatible yet.