There are several ways to obtain the Citadel system.
The easiest and quickest way to get Citadel running is to use Easy Install, a one-step installer that automatically downloads, installs, and configures the complete Citadel system on your computer. Easy Install eliminates the need to compile source code manually, and it eliminates package dependency problems.
If you prefer to build the Citadel system manually, follow this link to download full source code for the entire Citadel system.