Does the Pirate Audio line out support Bullseye?

I received a Pirate Audio line out yesterday and spent a bit more time installing the software than I anticipated. I flashed a micro SD card with the current version of Bullseye and tried running the automated install using the the script on github. It failed. It didn’t create user Mopidy and couldn’t see all the repos in the script. I then tried using Buster. Again the install failed. I finally got it to work with Buster by using the manual procedure available on github. Are there any plans to update the install script? The manual procedure involves, gasp, paying attention to what you’re doing. :) Even with copy/paste it took me a couple of tries to get things in the right order.