Sphinx Not Found Page

Sphinx-notfound-page is a Sphinx extension that automates the creation of custom 404 Not Found pages for Sphinx documentation. It correctly handles absolute URLs for assets such as JavaScript, CSS, and images, which is a common issue with manually created 404 pages. Developed and maintained by Read the Docs, it aims for compatibility across various hosting environments. The current version is 1.1.0, with releases typically addressing bug fixes and Sphinx compatibility updates.