GanttProject - Where is the CVS?

Ganttproject is developed worldwide, so its developers use a CVS repository. It is possible to get the current development version from cvs by checking it out using anonymous login:
Try these command lines:
  $ export CVSROOT=":pserver:anonymous@cvs.sf.net:/cvsroot/ganttproject"
  $ cvs login

  (No password, just press enter.)

  $ cvs -z3 co ganttproject