Failed to run in devcontainer

I’m trying to run Home Assistant in a dev container for add-on development, following these instructions. It seems like it’s unable to download the image, with this error:

24-02-11 14:55:39 ERROR (MainThread) [supervisor.docker.interface] Can’t install 404 Client Error for http+docker://localhost/v1.43/images/ Not Found (“No such image: Package qemuarm-64-homeassistant · GitHub”)

Why is it trying to download from localhost?

This is my first time using dev containers. When I open my repo in VS Code it prompts to Reopen in Container, which looks like it succeeds. When I try to run task: Start Home Assistant, it loads for a few minutes and then shows that error. I’m on M2 MacBook running MacOS Ventura 13.5.2 with Docker 24.0.7.

Full output is here: 24-02-11 22:52:40 DEBUG (MainThread) [supervisor.utils.dbus] Connect to D-Bus: o -

I’m really surprised how much disk space is used by this dev container, almost 19GB just to start up! Is that normal?

I actually got it working by just re-running the task a few times. But now it’s stuck again, it seems like it’s not fully starting.
Log: * Executing task: supervisor_run Run SupervisorStarting docker.Using " -