OctoPkgin is a Qt based GUI front end to the pkgin package manager, derived from Octopkg. It consists of a lxqt-sudo clone called qt-sudo used to gain root privileges and a package browser application used to search, install, remove and update packages. The project is compatible with NetBSD.
$ git clone https://github.com/aarnt/octopkgin
$ cd octopkgin
$ /usr/pkg/qt5/bin/qmake
$ make
# make install
$ octopkgin
Remember: OctoPkgin needs doas or sudo tool to work.
Enjoy!