Ok, one last question, does this mean you are watching the entire artist? What I'm trying to do is watch a specific release/release group via the list, not the entire artist, and I can't work out the format the custom list is expecting for that

Oh, it's looking for artist ID? I assumed it wanted release group ID!

Right, that explains it. Thank you!

Thank you. Is there any chance you could share what the final output looks like?

Trying to get our own script working and it would be nice to compare to a known good output

Sorry for the necro, but can you expand on how you pull in your ListenBrainz rec?