Two projects I greatly appreciate, allowing me to easily archive my bandcamp and GOG purchases (after the initial setup anyways):

https://github.com/easlice/bandcamp-downloader

https://github.com/Kalanyr/gogrepoc

And I recently learned about archivebox, which I think is going to be a fast favorite and finally let me clear out my mess of tabs/bookmarks: https://github.com/ArchiveBox/ArchiveBox