busybox for B7A: Debian trixie busybox-static 1:1.37.0-6+b9 arm64 (InRelease gpgv Good, Packages sha OK, deb sha OK) has NO ntpd applet -> rejected.
Used: Alpine v3.22 main/aarch64 busybox-static-1.37.0-r20.apk: APKINDEX signature Verified OK (key 616ae350), apk signature Verified OK,
  control hash Q10U6+dH5XvOE6YyrB8ttqRK9soeo= == APKINDEX C:, datahash 067803d6... == actual. Binary bin/busybox.static sha256 a6bb1e6e349cbdfa690a78cd0017413c5446bdae02ee003ceb682d4ae1a004ff.
  Applets present: ntpd (-w = query only, implies -n), adjtimex, date, nslookup, timeout. Local qemu run of ntpd printed nothing (not conclusive).
Local reachability check (dev host, python SNTP): 89.109.251.21/22/23 stratum 1.