hi,
we have our systems ipv6 only with nat64. Gitea self runs fine but the runner is complete broken.
I opened a bug: #484 - Support Ipv6 for job containers - act_runner - Gitea: Git with a cup of tea.
The workaround described here is a little bit nasty. An easy solution will be that we copy the settings from the default bridge to the new network for example. Or make it configurable.