You can write your own project template and distribute them in a gzip compressed tar file. The archive has to included all files needed by your template.
With Anjuta version 2.30 or below, the user has to decompress this archive
in a directory named anjuta/templates
in the data
directory defined according to
XDG Base Directory Specification.
With Anjuta version 2.31 or greater, if you name your archive with the
extension .wiz.tgz
the template will be automatically
installed and then executed if used as anjuta argument.