Your apps are not built reproducible in F-Droid, but we continuously test older versions on https://verification.f-droid.org/ and would like more and more apps to become repro Looking at the latest apps report: https://verification.f-droid.org/packages/com.tutpro.baresip/ & https://verification.f-droid.org/packages/com.tutpro.baresip.plus/ We can fix the BUILD_ID issue here. And the "date" issue brought by OpenSSL will be fixed by the recently merged https://gitlab.com/fdroid/fdroidserver/-/merge_requests/1653 as the OpenSSL build (and cmake) respect `SOURCE_DATE_EPOCH`