lucifer: yes I've been using that readme to run some of the available commands, for example this one:

╰─ docker run --rm -it --network musicbrainz-docker_default metabrainz/mbid-mapping python3 manage.py build-mb-artist-metadata-cache
                                                                                                                                      
testinggg
[]
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: start
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: drop old tables, create new tables
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: execute query 1 of 1
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: fetch 0 rows
0it [00:00, ?it/s]
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: complete! inserted 0 rows total.
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: post process inserted rows
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: create indexes
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: analyze table
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: swap tables and indexes into production.
Sat Feb 15 16:38:42 2025 mapping.mb_artist_metadata_cache: done


that doesn't seem to be populating any row