Virtually every single application at the company I work at deploys into VPCs without public IPv4 addresses - this seems like a ridiculous claim.
If your target VPC has neither PrivateLink nor public IPv4 connectivity somewhere, I'm not sure how that would work; I'd love to learn how that was built.
Maybe not in AWS, but there are Unique Local IPv6 addresses in fc00::/7 and NAT66 if you really love NAT!
I just recently heard that MS apparently has built everything IPv6 on Azure around NAT. This is so weird.
ECS does support dual-stack IPv6, but most other services do not support IPv6 at all.
I currently use Hugo and my blog is in Markdown in git, but the theme is pretty heavy-weight, and I like this look of the page in OP; Looking at the source, it's so minimal!
Does this break in iOS 18 or does this affect only self-signed (untrusted) certificates?