gentoo-overlay/app-containers/lxd/files/lxd-4.0.7-r1.service

[Unit]
Description=LXD - main daemon
After=network-online.target lxcfs.service lxd.socket
Requires=network-online.target lxcfs.service lxd.socket
Documentation=man:lxd(1)

[Service]
EnvironmentFile=-/etc/environment
ExecStart=/usr/sbin/lxd --group lxd --syslog
ExecStartPost=/usr/sbin/lxd waitready --timeout=600
KillMode=process
TimeoutStartSec=600s
TimeoutStopSec=30s
Restart=on-failure
LimitNOFILE=1048576
LimitNPROC=infinity
TasksMax=infinity

[Install]
Also=lxd-containers.service lxd.socket