Nothing seems to happen when I make a post

When I post a blog article, nothing is posted on my bluesky account. I’ve set things up as described in the manual, but the only thing that’s in the log is:

[2024-11-12 20:32:21] Plugin initialized
[2024-11-12 20:32:21] Plugin initialized
[2024-11-12 20:32:28] Plugin initialized

Etc. There’s only lines like that in the log. So this doesn’t seem to get triggered:

    add_action('publish_post', [$this, 'handle_post'], 10, 2);

I usually post via the xmlrpc API, but “manually” posting through the web interface doesn’t seem to trigger the action, either. Any suggestions for debugging this?