alt Hacker News> many of them don't seem to be open to the idea of learning something new
To the idea of learning something designed by commitee, over complex and stinking of enterprise and that you simply can't deploy "by hand".
One of the advantages of NAT by the way is that your "outside" configuration and "inside" configurations are completely independent with the exception of the snat rule.
The "inside" is your /56 or /48. You can add more local-only "inside"s if you'd like, which is useful for terrible ISPs with rotating network prefixes. The "outside" is everything on the internet.
If you can make your way through the absolute slog that is ARP+DHCP, you can get through NDP+SLAAC. Or even NDP+DHCPv6 if you're a control freak.
> One of the advantages of NAT by the way is that your "outside" configuration and "inside" configurations are completely independent with the exception of the snat rule.
If you want NAT, then set up NAT. Your fdb6:fc49:f5ae::/48 ULA is your 192.168.x.y address. Set up DHCPv6 if you'd like to pretend you control your address space. You could even just ignore the spec and use fdfd::/48 as your ULA so you can memorize addresses (fdfd::1, fdfd::2, that's even shorter than 192.168.1.2!). Use fe80::1 (a perfectly valid address) on your router as a standard gateway and have it do NAT to the outside world.
Even though it's heavily discouraged (because NAT is a massive hack after all), you can do NAT on IPv6 without any special tooling.