On the build system either build the application with the special profile 'debpack' (by issuing qmake "CONFIG+=debpack") or do it manually:
$ make_debian_package.sh <source-dir> <build-dir> <ppa-dir>The package version is automatically read from startkladde.pro.
Thereafter
$ sign_repo.sh <ppa-dir> <e-mail>for signing some repo files with gpg. This need not be done on the build system, can also be a different system (where your gpg key is).