Community contribution — a tested, in-place upgrade path for the armel Debian install
produced by Seagate-Central-Debian.
Status: works, but experimental. This goes against the project's standing advice to stay on the release the image ships. It succeeded end-to-end on a real unit (11.11 → 12.14 → 13.5) with zero errors, but
armelon trixie is an "upgrade-only" architecture (no installer, lightly tested). Treat the result as a hobby box until you've proven it stable, and make a full backup first (below).