However the lowest friction option is to use private IPv4 between your servers, but give every server a public IPv6 it can use for outgoing calls: updating the

However the lowest friction option is to use private IPv4 between your servers, but give every server a public IPv6 it can use for outgoing calls: updating the OS, fetching github repositories, collecting logs on your favorite SaaS, etc. Of course you can do all this via IPv4 by setting up proxies or gateways, but that's more work and more moving pieces than checking the checkbox that you want a public IPv6 and having it just work ... provided everyone you want to talk to talks IPv6.