Distrobuilder documentation?

The Distrobuilder examples are really helpful, however I’m curious about features the examples aren’t using.

For instance, emulating the Docker style “entrypoint” into the container - is this something that can be set on the distrobuilder level?

There’s no way to set that in LXD because it really only does system containers where that doesn’t apply.
For LXC containers, you could set a lxc.init.cmd entry in the LXC config in your distrobuilder yaml.

Of course you can also use an action to just replace /sbin/init with whatever you want in the container.