Hi, I'm having "icloudpy.base :: base.py :: 186 :: Service Temporarily Unavailable (503)" errors in authentication. This happens either by providing ENV_ICLOUD_PASSWORD in .env.icloud and by entering icloud password with command "icloud --username=<icloud-username> --session-directory=/config/session_data".
A similar service is having similar issues in the last few days (https://github.com/boredazfcuk/docker-icloudpd/issues/670); wondering is there's something similar - apparently related to an ongoing protocol change by apple - going on here.