uGet is Already Installed!
uGet 2.0.4 comes preinstalled in SparkyLinux 4.3 as the default download manager.
Install via the Sparky Linux repositories
You can upgrade to uGet 2.0.8 in SparkyLinux by doing the standard apt upgrade command.
SparkyLinux is based on Debian Testing so you can also upgrade by using one of the downloadable deb files.
Install the aria2 Plugin
SparkyLinux does not install the aria2 plugin by default but you can easily install aria2 1.30.0 from the repository.