[Unit]
Description=X Virtual Framebuffer (On-Demand)
After=network.target
Documentation=https://www.x.org/wiki/

# Socket activation: starts only when x11vnc tries to connect
Requires=xvfb.socket

[Service]
Type=simple
User=intense
Environment="DISPLAY=:99"
ExecStart=/usr/bin/Xvfb :99 -screen 0 1920x1080x24 -listen tcp

# Restart on failure
Restart=on-failure
RestartSec=5

# Resource limits
MemoryMax=512M
CPUQuota=50%

# Logging
StandardOutput=journal
StandardError=journal
SyslogIdentifier=xvfb

[Install]
WantedBy=multi-user.target