This is OctoXBPS, a powerful XBPS front end using Qt libs.
OctoXBPS is a Qt based GUI front end to the XBPS package manager, derived from OctoPkg. It consists of a lxqt-sudo clone called octoxbps-sudo used to gain root privileges, a package browser application used to search, install, remove and update packages and a system tray icon notifier to notify the user about package changes. The project is compatible with Void Linux and Project Trident.
You can use XBPS to install the latest OctoXBPS version available in your distro:
# xbps-install -S octoxbps
Follow the steps bellow to compile the latest source code (you'll need curl, git and qt5 packages):
$ git clone https://github.com/aarnt/octoxbps
$ cd octoxbps/sudo
$ qmake-qt5
$ make
# make install
$ cd ../notifier
$ qmake-qt5
$ make
# make install
$ cd ..
$ qmake-qt5
$ make
# make install
In order to run OctoXBPS main package browser:
$ octoxbps
To execute OctoXBPS system tray notifier:
$ octoxbps-notifier
You'll also need "curl" and "sudo" packages installed and your user to be a member of the wheel group.
Enjoy!