Instead of GitHub Pages, it would be appropriate for this tool to be hosted at https://bookform.toolforge.org. For reference, the current documentation about deploying from a GitHub repo is available in the page [Help:Toolforge/Auto-update a tool from GitHub/GitLab](https://wikitech.wikimedia.org/wiki/Help:Toolforge/Auto-update_a_tool_from_GitHub/GitLab) in the Wikitech wiki. The GitHub Pages version could remain available in addition to Toolforge — or at least it should be mentioned in the contribution instructions for those who want to submit PRs via GitHub, so that they can fork the tool, show previews of their PRs, etc.
This issue appears to be discussing a feature request or bug report related to the repository. Based on the content, it seems to be still under discussion. The issue was opened by waldyrious and has received 0 comments.