Of a similar nature, my weekend project last week:

https://github.com/meeb/bandcampsync

Does much the same thing, but it unpacks the zips and tracks the directories. It can run as a docker container which syncs your collection on a daily timer. The use case is to download your purchases to local directories for use with Jellyfin/Plex/etc. You can just buy music and it'll appear on your local media server automatically within a day.