Would you happen to know of any good tutorials for this? Are you talking about using something like Docker?

What exactly is your workflow?

Thank you.

Allocate a /64 to any machine that runs VMs or containers. Then I tend to just run radvd which will broadcast the prefix so that hosts can auto assign; for virtual hosts letting them auto assign based on mac address is usually fine, as the mac address is random or you assign explicitly (explicit is often easiest). Its fairly simple, just get ipv6 and start using it...

Getting accustomed to allowing public access to development services doesn't sound like a good idea.

You would normally have to explicitly unfirewall any service; I run my ipv6 as inbound ssh only. Although crawling ipv6 is pretty hard compared to ipv4.