Run gradle task desktopRelease:
./gradlew desktopRelease
The built archive should show up in the folder
build/releases/osprey-desktop-$OS-$VERSION.tbz2,
where $OS desrcibes your operating system,
and $VERSION is the current version of Osprey.
OSPREY Desktop builds as a .deb package for Debian-based Linux
distributions, including Debian, Ubuntu, Mint, and others.
The .deb packaging tools will only work in a Debian-based linux,
and not other distributions like Fedora/RHEL/CentOS/Rocky/Alma or Arch/Manjaro.
OSPREY Desktop builds as a .dmg application installer in OSX.
Before building, install the WiX tools from Microsoft.
Under Windows, OSPREY Desktop builds as an MSI installer.