Build failure during the 2026-07-07 “build all packages for x86_64”
private-repo release pass. Needs qt5-3d, not in this arch/ tree
(note: distinct from qt5-quick3d, which is in the tree and already
published – qt5-3d itself doesn’t exist here). External-dependency
class, see memory/dbmodel-qt4.md. Not fixed as part of this pass.