sudo add-apt-repository ppa:modriscoll/nzbget
sudo apt update
sudo apt install nzbget
sudo mkdir /var/lib/nzbget
sudo groupadd -r nzbget
sudo useradd -r -g nzbget -d /var/lib/nzbget -s /bin/false -c nzbget nzbget
sudo cp /usr/share/nzbget/nzbget.conf /var/lib/nzbget/.nzbget
sudo chown -R nzbget:nzbget /var/lib/nzbget
sudo chmod -R 750 /var/lib/nzbget
curl -O https://aur.archlinux.org/cgit/aur.git/snapshot/nzbget-systemd.tar.gz
tar xf nzbget-systemd.tar.gz
sudo cp nzbget-systemd/nzbget.service /etc/systemd/system/
...
DaemonUsername=nzbget
MainDir=/home/myuser/Downloads/NZBGet
UMask=0002
WebDir=/usr/share/nzbget/webui
LockFile=/var/lib/nzbget/nzbget.lock
ScriptDir=${WebDir}/scripts
ConfigTemplate=/usr/share/nzbget/nzbget.conf
...
mkdir /home/myuser/Downloads/NZBGet
sudo chown nzbget:nzbget /home/myuser/Downloads/NZBGet
sudo chmod 775 /home/myuser/Downloads/NZBGet
sudo adduser myuser nzbget
logout and log back in to refresh group assignments
sudo systemctl start nzbget
http://localhost:6789
user: nzbget
pass: tegbzn6789
sudo systemctl enable nzbget