The instructions from https://pip.pypa.io/en/stable/installation/#standalone-zip-application say to reference the https://bootstrap.pypa.io/pip/ site for the latest zipapp build, but it doesn't seem like anything's been updated since 18-Nov-2024. I was able to locate the latest build at https://github.com/pypa/get-pip/tree/main/public/zipapp, so I assume this means the site deployment is broken.