Dear maintainer(s), I noticed that package radioclk recommends ntp, which is currently not available in unstable. See: - https://tracker.debian.org/pkg/ntp ntp was deleted in 2022 and is only available in old-old-stable right now. Other packages, like dovecot, recommended ntp and did this solution: https://salsa.debian.org/debian/dovecot/-/commit/812f0ea434b313d25aa9177ec2e1805e42649d5f Which seems the way to go (a concrete package and a virtual) Thank you for your time, PS[0]: I am developing a tool to detect such issues: https://salsa.debian.org/carlespina/check-relations . Reports are manually reviewed before submission. If you would prefer not to receive such reports (for specific packages, all of your maintained packages, etc.), please let me know. Any other feedback is welcomed as well. No more bugreports for this missing relation will be sent. PS[1]: more information available in https://salsa.debian.org/carlespina/check-relations/-/blob/main/README.md and https://salsa.debian.org/carlespina/check-relations/-/blob/main/docs/bug-report-extra-info.md