GUI package installer, useful when you download some package from the internet. https://launchpad.net/gdebi/
According https://bazaar.launchpad.net/~gdebi-developers/gdebi/trunk/files Gdebi was stopped to develop 7 years ago. It is deprecated project.
In that case what about some alternatives like QApt, Eddy, or Muon? Should I open new issues for them? https://tracker.debian.org/pkg/libqapt https://github.com/donadigo/eddy https://apps.kde.org/muon/
(Ответ для Radek Raczkowski на комментарий #2) > In that case what about some alternatives like QApt, Eddy, or Muon? > Should I open new issues for them? > > https://tracker.debian.org/pkg/libqapt > https://github.com/donadigo/eddy > https://apps.kde.org/muon/ Please, create issues for each project.