To support new format of package (like deb) one should implement number of interfaces pack_*:

pack_deploy_single_archive

pack_gen_meta

pack_name_file

pack_create_archive

pack_info

pack_get_version

pack_get_inner_version

pack_define_by_filename

The example of such implementation can be taken from:

any/lib/packslack.sh

any/lib/packdeb.sh

The code with implementation should be placed at any/lib/packnew.sh, then new format should be included in config:

[id]
rdd_prf_id = any, amd64, gcc, linux, packnew