requirements.txt has python_version < 3.12, but ub2604 has 3.14 https://github.com/iiab/calibre-web/blob/ce49ebb28cb67dc85ba1e0d8485021db7b0cd643/requirements.txt#L8
requirements.txt has python_version < 3.12, but ub2604 has 3.14
calibre-web/requirements.txt
Line 8 in ce49ebb