How to run udp2raw with nftables?

Hi everyone! I tried to run udp2raw in Debian 12 unsuccessfully. Based on what I see in udp2raw log, it tries to install iptables rules, which fails, because I have no iptables installed in my systems, I'm wondering why udp2raw tries to do that - iptables is obsolete for a long time already and was replaced by nftables in recent Linux distributions. I don't want to create a mess in the system by installing iptables in addition to nftables. However, I haven't found yet how to run udp2raw at nftables-based systems. Does anyone know how to do that? Appreciate your help!