furt/scripts/setup-user.sh

#!/bin/sh
# scripts/setup-user.sh - Create _furt system user and group

set -e

# Detect operating system
if [ "$(uname)" = "OpenBSD" ]; then
    # BSD systems use _furt user convention
    groupadd _furt 2>/dev/null || true
    useradd -g _furt -s /bin/false -d /var/empty _furt 2>/dev/null || true
    echo "Created BSD system user: _furt"
else
    # Linux systems use furt user with --system flag
    groupadd --system furt 2>/dev/null || true
    useradd --system -g furt -s /bin/false -d /var/empty furt 2>/dev/null || true
    echo "Created Linux system user: furt"
fi

echo "User setup completed successfully"