• Read every file under debian/ in full (changelog, control, copyright, rules, gbp.conf, source/format, the three .install files, patches/series and the one patch); debian/watch is out of scope here.
• Upstream tree inventoried completely: 45 files (dbus.pro, .gitignore, .gitmodules, license.bsd, license.lgpl, doc/ (4), rpm/ (1), src/ (29), tests/ (7)) — no programs, libraries, bytecode, archives, PDFs, images or fonts.
• Every file is matched by a stanza: Files: * (BSD-3-clause) is the catch-all, doc/* is GFDL-1.3, and the LGPL stanza names src/plugin/* plus the six non-BSD test files.
• src/nemo-dbus/*.cpp/.h (12 files, incl. private/) carry You may use this file under the terms of the BSD license as follows: with the three-clause text; dbus.cpp:2-3 adds Copyright (C) 2021 Open Mobile Platform LLC., which Files: * names.
• src/plugin/* (10 files) and tests/auto/tst_dbus_interface.qml, tests/dbustestd/dbustestd.c carry GNU Lesser General Public License version 2.1 headers referring to license.lgpl; the short name LGPL-2.1 is right (no "or later") and /usr/share/common-licenses/LGPL-2.1 exists.
• tests/auto/tst_dbus.qml is BSD-3-clause ("Neither the name of the Jolla Ltd") although it sits in tests/; it is covered by Files: * and not by the LGPL stanza, which is correct.
• Files with no notice of their own are still assigned a licence by the matching stanza: dbus.pro, src/src.pro, src/nemo-dbus/nemo-dbus.pro, src/nemo-dbus/private/private.pri, src/plugin/qmldir, src/plugin/plugins.qmltypes, src/nemo-dbus/README, tests/tests.pro, tests/dbustestd/Makefile, tests/dbustestd/dbus/org.nemomobile.dbustestd.service, tests/test-definition/tests.xml, rpm/nemo-qml-plugin-dbus-qt5.spec, .gitignore, .gitmodules.
• Prescan debian/copyright:15 (License: GFDL-1.3) is not a DFSG problem: the only GFDL statement in the tree is the footer template at doc/nemo-qml-plugin-dbus.qdocconf:29-33 (© 2021 Jolla OY, GNU Free Documentation License version 1.3) with no invariant sections or cover texts, so the licence is free; doc/ holds only the qdoc sources and their config, and the patch removes doc from dbus.pro's SUBDIRS, so no GFDL document is built or installed.
• Prescan holders are accounted for: "Jolla Ltd Contact: Andrew den Exter" and "Jolla Ltd. Contact: Simo Piiroinen" appear in debian/copyright as Jolla Ltd / Jolla OY together with both individuals; no other holder (Nokia, Sailfish, SPDX tag) exists in the tree.
• license.bsd and license.lgpl at the top level are the bare licence texts (BSD-3-clause and LGPL-2.1), covered by Files: *; there is nothing copyrightable of a third party in them.
• .gitmodules names a dbus-gmain submodule taken from dbus-glib, but tests/dbustestd/dbus-gmain is an empty directory in the tarball, so no third-party code is shipped and nothing needs a licence stanza; dbustestd.c:50 includes "dbus-gmain/dbus-gmain.h", so that test daemon cannot be compiled from the tarball, but no target builds it.
• src/plugin/plugins.qmltypes is generated by qmlplugindump from the plugin sources (plugin.pro's qmltypes target), which are in the package; it is upstream-shipped build output, not a file whose generator input is missing.
• Standards-Version 4.7.4 against the reviewing system's Policy 4.7.4.1: current.
• At compat 14 dh_gencontrol adds relationship substvars itself, so the qml6 package not naming ${shlibs:Depends}/${qml6:Depends} is not an issue; dh_qmldeps will add the QtQuick import that plugins.qmltypes declares (dependencies: ["QtQuick 2.0"]).
• hardening=+all is effective: debhelper's qmake buildsystem passes dpkg-buildflags' CFLAGS/CXXFLAGS/LDFLAGS into QMAKE_*FLAGS (read /usr/share/perl5/Debian/Debhelper/Buildsystem/qmake.pm:68-80), and the qmake6 buildsystem used by debian/rules exists (qmake6.pm).
• Both build dependencies resolve: pkg-kde-tools 0.22.1 Provides dh-sequence-qmldeps and dh-sequence-pkgkde-symbolshelper (apt-cache); no Build-Depends names something missing.
• The single patch (0001-Do-Not-Build-Tests-And-Docs) has a DEP-3 header (Author, Origin: vendor, Forwarded: no), is the one in patches/series, and only changes dbus.pro's SUBDIRS from src tests doc to src; the doc build needs sailfish-qdoc-template (not in Debian) and the tests install under /opt and need the absent dbus-gmain submodule, so keeping it Debian-side and not forwarded is reasonable.
• Install files agree with the .pro files: 6 public headers + private/ + libnemodbus.so + pkgconfig/nemodbus.pc in libnemodbus-dev, the qml dir with libnemodbus.so/qmldir/plugins.qmltypes in the QML package, libnemodbus.so.* in libnemodbus1; the -dev package depends on qt6-base-dev, which its headers and nemodbus.pc need.
• No maintainer scripts, no debian/tests. No test is built or run: the patch drops upstream's tests, which are Sailfish-specific (they install to /opt, need dbus-gmain, and tst_dbus_interface.qml imports org.nemomobile.dbus, a URI this package installs no qmldir for).
• uscan found the packaged version as the newest upstream release (upstream 2.1.39, packaged 2.1.39).
• Every pointer of debian/copyright to /usr/share/common-licenses names a file that is there (GFDL-1.3, LGPL-2.1).

• VERSION/soname: debian/rules passes no VERSION to qmake and src/nemo-dbus/nemo-dbus.pro sets none (only QMAKE_PKGCONFIG_VERSION = $$VERSION), while the Qt5-era rpm spec passes VERSION=%{version}; debian/libnemodbus1.install expects usr/lib/${DEB_HOST_MULTIARCH}/libnemodbus.so.* and the runtime package is named libnemodbus1. If qmake6's default gives libnemodbus.so.1.0.0/libnemodbus.so.1, all is consistent; if it gives a bare libnemodbus.so, dh_install would abort on the unmatched pattern and libnemodbus1 would end up empty, and the .pc file would carry an empty Version. qmake is not installed on the reviewing system, so this needs a build: the file names in debian/tmp, and whether VERSION has to be passed on the qmake command line (as the rpm spec does).
• The QML binary package is named after the source, qml6-module-nemo-qml-plugin-dbus, while the import URI it provides is Nemo.DBus; Debian's qml6-module-* packages are normally named after the URI (qml6-module-nemo-dbus). This is a team convention, not a Policy requirement, and no reference tool here states it.

None.