Teeworlds systemd units

$ mv ~/teeworlds-tw-plus /opt/
$ mv ~/teeworlds-bomb /opt/
$ useradd -c 'teeworlds-tw-plus' -d /opt/teeworlds-tw-plus -m -r -s /usr/sbin/nologin teeworlds-tw-plus
$ useradd -c 'teeworlds-bomb' -d /opt/teeworlds-bomb -m -r -s /usr/sbin/nologin teeworlds-bomb
$ cat /etc/systemd/system/teeworlds-tw-plus@.service
[Unit]
Description=teeworlds-tw-plus server with %i.cfg config file
After=syslog.target network.target

[Service]
User=teeworlds-tw-plus
WorkingDirectory=/opt/teeworlds-tw-plus
ExecStart=/opt/teeworlds-tw-plus/tw+_srv -f %i.cfg
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
$ cat /etc/systemd/system/teeworlds-bomb@.service
[Unit]
Description=teeworlds-bomb server with %i.cfg config file
After=syslog.target network.target

[Service]
User=teeworlds-bomb
WorkingDirectory=/opt/teeworlds-bomb
ExecStart=/opt/teeworlds-bomb/teeworlds_srv -f %i.cfg
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
$ systemctl start teeworlds-tw-plus@ctf teeworlds-tw-plus@ictf teeworlds-tw-plus@gctf teeworlds-tw-plus@ctf64
$ systemctl start teeworlds-bomb@bomb