Minecraft systemd script

minecraft.service

root@minecraft:~# cat /etc/systemd/system/minecraft.service  
[Unit]
Description=Minecraft Server
After=network.target
Wants=network-online.target
StartLimitIntervalSec=500
StartLimitBurst=5

[Service]
Type=simple
WorkingDirectory=/root/minecraft_1_16_3/
KillMode=none
#ExecStart=/root/minecraft_1_16_3/start.sh
ExecStart=/usr/bin/screen -D -m -S mc-0 /usr/bin/java -Xmx8192M -Xms8192M -jar /root/minecraft_1_16_3/server.jar nogui
#ExecStop=touch /root/overviewer/stop_file
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 15 SECONDS..."^M'
ExecStop=/bin/sleep 5
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 10 SECONDS..."^M'
ExecStop=/bin/sleep 5
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 5 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 4 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 3 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 2 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 1 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "say SERVER SHUTTING DOWN IN 0 SECONDS..."^M'
ExecStop=/bin/sleep 1
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "save-all"^M'
ExecStop=/usr/bin/screen -p 0 -S mc-0 -X eval 'stuff "stop"^M'
ExecStop=/usr/bin/screen -X -S mc-0 quit

TimeoutStartSec=30
TimeoutStopSec=300
Restart=on-failure
RestartSec=30s

User=root
Group=root

[Install]
WantedBy=multi-user.target