[algas]

Yup, here's the problem [0]:

  def calculate_backlinks(
      pages: Dict[str, Page], attachments: Dict[str, Attachment]
  ) -> None:
      for page in pages.values():
          for link in page.links:
              linked_page = find(pages, attachments, link)
              if not linked_page:
                  info(f"unable to find link", link, page.title)
                  continue
             
  linked_page.backlinks.append(page)

No deduplication performed. Since he's parsing the backlinks directly out of the markdown, you don't have to worry about a recursive loop where the backlinks section on one page appears as links in another. A simple solution would be to change the datatype of backlinks from list to set.

[0] From OP's static site generator: https://github.com/llimllib/obsidian_notes/blob/main/run.py