suspend@gil.service

[Unit]
Description=User suspend actions
Before=sleep.target

[Service]
User=%I
Type=forking
Environment=DISPLAY=:0
ExecStartPre= scrot /tmp/screen.png; convert /tmp/screen.png -scale 10% -scale 1000% /tmp/screen.png

ExecStart=/usr/bin/i3lock -i /tmp/screen.png
ExecStartPost=/usr/bin/sleep 1

[Install]
WantedBy=sleep.target