post_install() {
    useradd -r -s /sbin/nologin -c 'Pritunl Zero web server' pritunl-zero-web &> /dev/null || true
    systemctl daemon-reload &> /dev/null || true
    systemctl is-active --quiet pritunl-zero && systemctl restart pritunl-zero || true
}
post_upgrade() {
    useradd -r -s /sbin/nologin -c 'Pritunl Zero web server' pritunl-zero-web &> /dev/null || true
    systemctl daemon-reload &> /dev/null || true
    systemctl is-active --quiet pritunl-zero && systemctl restart pritunl-zero || true
}
post_remove() {
    systemctl daemon-reload &> /dev/null || true
}
