httplib2 raises RedirectMissingLocation on Google Play's resumable upload redirects, causing every deploy since run #77 to fail. Replace google-api-python-client + google-auth-httplib2 with a direct requests-based implementation using AuthorizedSession; drop httplib2 from flake.nix entirely. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>