I was just playing around with Bridgy Fed, which now allows you to set up a custom username on your domain name. This allows your Hubzilla account (or any ActivityPub account, for that matter) to appear on Bluesky and AT Protocol... without the need to create a Bluesky account.
Following the instructions, I was able to set my Bluesky username to be:
@scott.codejournal.dev (which is basically scott@codejournal.dev with the @ sign in a different place).
Whenever I post on Hubzilla, it also posts to Bluesky.
I created some short notes about how to do it, with links to the more thorough documentation.
https://codejournal.dev/wiki/scott/Hubzilla/Bridges
