Yes, I'm running dual stack, and since your fix above everything is working. Still, in the long run it would be great if you could re-enable IPv6.

I realise this comes with an increased attack surface and several issues for the benefit of a relatively small number of users, but ultimately Nostr needs to be IPv6-friendly if we want resilience, global reach, personal relays running on mobile phones, and so on. IPv6 support is a necessary step for long-term sustainability.