diff --git a/docker/rocky8/Dockerfile b/docker/rocky8/Dockerfile
index 5817d3e0..4d395230 100644
--- a/docker/rocky8/Dockerfile
+++ b/docker/rocky8/Dockerfile
@@ -3,6 +3,7 @@ LABEL authors="leonarski_f"
 
 ARG OPENSSL_VERSION=3.5.4
 ARG QT_VERSION=6.9.1
+ARG DBUS_VERSION=1.14.10
 ARG NODE_MAJOR=22
 ARG EIGEN_VERSION=3.4.0
 # HDF5, libtiff and libjpeg-turbo are built by the jungfraujoch CMake itself (FetchContent /
@@ -47,11 +48,10 @@ RUN dnf -y install epel-release && \
       libXinerama-devel \
       mesa-libGL-devel \
       mesa-libEGL-devel \
-      dbus-devel \
+      expat-devel \
       krb5-devel \
       zlib-devel \
       zlib-static \
-      glib2-devel \
       fontconfig-devel \
       zlib-static \
       java-21-openjdk-headless \
@@ -96,6 +96,33 @@ ENV CXX=${GCC_TOOLSET_ROOT}/usr/bin/g++
 
 ENV PKG_CONFIG_PATH=${OPENSSL_ROOT_DIR}/lib/pkgconfig:${OPENSSL_ROOT_DIR}/lib64/pkgconfig
 
+# Static libdbus: link D-Bus into the viewer (Qt6::DBus) instead of pulling libdbus-1.so.3 at runtime.
+# A distro libdbus-1.so drags in libsystemd (-> libzstd/liblz4/libcap/libgcrypt/libgpg-error) and
+# libselinux (-> libpcre2). Disabling those integrations makes libdbus-1.a depend on ~libc alone, so
+# that whole runtime .so tail disappears while the viewer keeps its single-instance / remote-control
+# D-Bus feature -- it is a pure session-bus client (registers a name + exports an adaptor), so the
+# daemon-side systemd/selinux features are irrelevant. Static-only install (no .so); the Qt build
+# finds it through find_package(DBus1) via the -DDBus1_DIR hint (the CMake package config dbus
+# installs, which imports libdbus-1.a). expat is only a configure-time dep of
+# the dbus daemon; the client libdbus-1 links neither expat nor systemd.
+RUN set -eux; \
+    cd /tmp; \
+    curl -LO https://dbus.freedesktop.org/releases/dbus/dbus-${DBUS_VERSION}.tar.xz; \
+    tar -xf dbus-${DBUS_VERSION}.tar.xz; \
+    cd dbus-${DBUS_VERSION}; \
+    ./configure --prefix=/opt/dbus-${DBUS_VERSION}-static \
+      --enable-static --disable-shared \
+      --disable-systemd --without-systemdsystemunitdir \
+      --disable-selinux --disable-apparmor --disable-libaudit \
+      --disable-tests --disable-asserts \
+      --disable-doxygen-docs --disable-xml-docs --disable-ducktype-docs; \
+    make -j"$(nproc)"; \
+    make install; \
+    cd /; rm -rf /tmp/dbus-${DBUS_VERSION} /tmp/dbus-${DBUS_VERSION}.tar.xz
+
+# Put the static libdbus pkgconfig ahead of the system one so Qt6::DBus resolves to the .a
+ENV PKG_CONFIG_PATH=/opt/dbus-${DBUS_VERSION}-static/lib/pkgconfig:${PKG_CONFIG_PATH}
+
 ARG QT_PREFIX=/opt/qt-${QT_VERSION}-static
 RUN set -eux; \
     cd /tmp; \
@@ -108,6 +135,8 @@ RUN set -eux; \
       -DQT_BUILD_TESTS=OFF \
       -DQT_BUILD_EXAMPLES=OFF \
       -DQT_FEATURE_dbus=ON \
+      -DQT_FEATURE_dbus_linked=ON \
+      -DDBus1_DIR=/opt/dbus-${DBUS_VERSION}-static/lib/cmake/DBus1 \
       -DQT_FEATURE_xcb=ON \
       -DQT_FEATURE_xcb_xlib=OFF \
       -DQT_FEATURE_xkbcommon_x11=ON \
@@ -115,6 +144,7 @@ RUN set -eux; \
       -DQT_FEATURE_opengl_desktop=ON \
       -DQT_FEATURE_opengl_dynamic=OFF \
       -DQT_FEATURE_vulkan=OFF \
+      -DQT_FEATURE_glib=OFF \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_PREFIX=${QT_PREFIX} \
       -DCMAKE_C_COMPILER=${CC} \
diff --git a/docker/rocky9/Dockerfile b/docker/rocky9/Dockerfile
index 32c0e94d..d0e27deb 100644
--- a/docker/rocky9/Dockerfile
+++ b/docker/rocky9/Dockerfile
@@ -3,6 +3,7 @@ LABEL authors="leonarski_f"
 
 ARG OPENSSL_VERSION=3.5.4
 ARG QT_VERSION=6.9.1
+ARG DBUS_VERSION=1.14.10
 ARG NODE_MAJOR=22
 ARG EIGEN_VERSION=3.4.0
 # HDF5, libtiff and libjpeg-turbo are built by the jungfraujoch CMake itself (FetchContent /
@@ -57,11 +58,10 @@ RUN dnf -y update && \
       libXinerama-devel \
       mesa-libGL-devel \
       mesa-libEGL-devel \
-      dbus-devel \
+      expat-devel \
       krb5-devel \
       zlib-devel \
       zlib-static \
-      glib2-devel \
       zlib-static \
       fontconfig-devel \
       mesa-dri-drivers \
@@ -99,6 +99,33 @@ ENV PATH=${GCC_TOOLSET_ROOT}/usr/bin:${PATH}
 ENV CC=${GCC_TOOLSET_ROOT}/usr/bin/gcc
 ENV CXX=${GCC_TOOLSET_ROOT}/usr/bin/g++
 
+# Static libdbus: link D-Bus into the viewer (Qt6::DBus) instead of pulling libdbus-1.so.3 at runtime.
+# A distro libdbus-1.so drags in libsystemd (-> libzstd/liblz4/libcap/libgcrypt/libgpg-error) and
+# libselinux (-> libpcre2). Disabling those integrations makes libdbus-1.a depend on ~libc alone, so
+# that whole runtime .so tail disappears while the viewer keeps its single-instance / remote-control
+# D-Bus feature -- it is a pure session-bus client (registers a name + exports an adaptor), so the
+# daemon-side systemd/selinux features are irrelevant. Static-only install (no .so); the Qt build
+# finds it through find_package(DBus1) via the -DDBus1_DIR hint (the CMake package config dbus
+# installs, which imports libdbus-1.a). expat is only a configure-time dep of
+# the dbus daemon; the client libdbus-1 links neither expat nor systemd.
+RUN set -eux; \
+    cd /tmp; \
+    curl -LO https://dbus.freedesktop.org/releases/dbus/dbus-${DBUS_VERSION}.tar.xz; \
+    tar -xf dbus-${DBUS_VERSION}.tar.xz; \
+    cd dbus-${DBUS_VERSION}; \
+    ./configure --prefix=/opt/dbus-${DBUS_VERSION}-static \
+      --enable-static --disable-shared \
+      --disable-systemd --without-systemdsystemunitdir \
+      --disable-selinux --disable-apparmor --disable-libaudit \
+      --disable-tests --disable-asserts \
+      --disable-doxygen-docs --disable-xml-docs --disable-ducktype-docs; \
+    make -j"$(nproc)"; \
+    make install; \
+    cd /; rm -rf /tmp/dbus-${DBUS_VERSION} /tmp/dbus-${DBUS_VERSION}.tar.xz
+
+# Put the static libdbus pkgconfig ahead of the system one so Qt6::DBus resolves to the .a
+ENV PKG_CONFIG_PATH=/opt/dbus-${DBUS_VERSION}-static/lib/pkgconfig:${PKG_CONFIG_PATH}
+
 # Build and install static Qt 6.9 with Core, Gui, Widgets, Charts, DBus
 ARG QT_PREFIX=/opt/qt-${QT_VERSION}-static
 RUN set -eux; \
@@ -112,6 +139,8 @@ RUN set -eux; \
       -DQT_BUILD_TESTS=OFF \
       -DQT_BUILD_EXAMPLES=OFF \
       -DQT_FEATURE_dbus=ON \
+      -DQT_FEATURE_dbus_linked=ON \
+      -DDBus1_DIR=/opt/dbus-${DBUS_VERSION}-static/lib/cmake/DBus1 \
       -DQT_FEATURE_xcb=ON \
       -DQT_FEATURE_xcb_xlib=OFF \
       -DQT_FEATURE_xkbcommon_x11=ON \
@@ -119,6 +148,7 @@ RUN set -eux; \
       -DQT_FEATURE_opengl_desktop=ON \
       -DQT_FEATURE_opengl_dynamic=OFF \
       -DQT_FEATURE_vulkan=OFF \
+      -DQT_FEATURE_glib=OFF \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_PREFIX=${QT_PREFIX} \
       -DCMAKE_C_COMPILER=${CC} \
diff --git a/docker/ubuntu2204/Dockerfile b/docker/ubuntu2204/Dockerfile
index 7dbdb35a..b0c790b8 100644
--- a/docker/ubuntu2204/Dockerfile
+++ b/docker/ubuntu2204/Dockerfile
@@ -6,6 +6,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 ARG OPENSSL_VERSION=3.5.4
 ARG QT_VERSION=6.9.1
+ARG DBUS_VERSION=1.14.10
 ARG NODE_MAJOR=22
 ARG EIGEN_VERSION=3.4.0
 # HDF5, libtiff and libjpeg-turbo are built by the jungfraujoch CMake itself (FetchContent /
@@ -71,9 +72,8 @@ RUN set -eux; \
       libgl1-mesa-dev \
       libglx-dev \
       libegl1-mesa-dev \
-      libdbus-1-dev \
+      libexpat1-dev \
       zlib1g-dev \
-      libglib2.0-dev \
       libfontconfig1-dev \
       libdrm-dev \
       mesa-utils \
@@ -123,6 +123,33 @@ RUN set -eux; \
     rm -rf /var/lib/apt/lists/*; \
     node --version; npm --version; (corepack enable || true)
 
+# Static libdbus: link D-Bus into the viewer (Qt6::DBus) instead of pulling libdbus-1.so.3 at runtime.
+# A distro libdbus-1.so drags in libsystemd (-> libzstd/liblz4/libcap/libgcrypt/libgpg-error) and
+# libselinux (-> libpcre2). Disabling those integrations makes libdbus-1.a depend on ~libc alone, so
+# that whole runtime .so tail disappears while the viewer keeps its single-instance / remote-control
+# D-Bus feature -- it is a pure session-bus client (registers a name + exports an adaptor), so the
+# daemon-side systemd/selinux features are irrelevant. Static-only install (no .so); the Qt build
+# finds it through find_package(DBus1) via the -DDBus1_DIR hint (the CMake package config dbus
+# installs, which imports libdbus-1.a). expat is only a configure-time dep of
+# the dbus daemon; the client libdbus-1 links neither expat nor systemd.
+RUN set -eux; \
+    cd /tmp; \
+    curl -LO https://dbus.freedesktop.org/releases/dbus/dbus-${DBUS_VERSION}.tar.xz; \
+    tar -xf dbus-${DBUS_VERSION}.tar.xz; \
+    cd dbus-${DBUS_VERSION}; \
+    ./configure --prefix=/opt/dbus-${DBUS_VERSION}-static \
+      --enable-static --disable-shared \
+      --disable-systemd --without-systemdsystemunitdir \
+      --disable-selinux --disable-apparmor --disable-libaudit \
+      --disable-tests --disable-asserts \
+      --disable-doxygen-docs --disable-xml-docs --disable-ducktype-docs; \
+    make -j"$(nproc)"; \
+    make install; \
+    cd /; rm -rf /tmp/dbus-${DBUS_VERSION} /tmp/dbus-${DBUS_VERSION}.tar.xz
+
+# Put the static libdbus pkgconfig ahead of the system one so Qt6::DBus resolves to the .a
+ENV PKG_CONFIG_PATH=/opt/dbus-${DBUS_VERSION}-static/lib/pkgconfig:${PKG_CONFIG_PATH}
+
 # Build and install static Qt with Core, Gui, Widgets, Charts, DBus
 ARG QT_PREFIX=/opt/qt-${QT_VERSION}-static
 RUN set -eux; \
@@ -136,6 +163,8 @@ RUN set -eux; \
       -DQT_BUILD_TESTS=OFF \
       -DQT_BUILD_EXAMPLES=OFF \
       -DQT_FEATURE_dbus=ON \
+      -DQT_FEATURE_dbus_linked=ON \
+      -DDBus1_DIR=/opt/dbus-${DBUS_VERSION}-static/lib/cmake/DBus1 \
       -DQT_FEATURE_xcb=ON \
       -DQT_FEATURE_xcb_xlib=OFF \
       -DQT_FEATURE_xkbcommon_x11=ON \
@@ -143,6 +172,7 @@ RUN set -eux; \
       -DQT_FEATURE_opengl_desktop=ON \
       -DQT_FEATURE_opengl_dynamic=OFF \
       -DQT_FEATURE_vulkan=OFF \
+      -DQT_FEATURE_glib=OFF \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_PREFIX=${QT_PREFIX} \
       -DCMAKE_C_COMPILER=${CC} \
diff --git a/docker/ubuntu2404/Dockerfile b/docker/ubuntu2404/Dockerfile
index 796ee67b..bd7be0b1 100644
--- a/docker/ubuntu2404/Dockerfile
+++ b/docker/ubuntu2404/Dockerfile
@@ -6,6 +6,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 ARG OPENSSL_VERSION=3.5.4
 ARG QT_VERSION=6.9.1
+ARG DBUS_VERSION=1.14.10
 ARG NODE_MAJOR=22
 ARG EIGEN_VERSION=3.4.0
 # HDF5, libtiff and libjpeg-turbo are built by the jungfraujoch CMake itself (FetchContent /
@@ -71,9 +72,8 @@ RUN set -eux; \
       libgl1-mesa-dev \
       libglx-dev \
       libegl1-mesa-dev \
-      libdbus-1-dev \
+      libexpat1-dev \
       zlib1g-dev \
-      libglib2.0-dev \
       libfontconfig1-dev \
       libdrm-dev \
       libglvnd-dev \
@@ -110,6 +110,33 @@ RUN set -eux; \
     rm -rf /var/lib/apt/lists/*; \
     node --version; npm --version; (corepack enable || true)
 
+# Static libdbus: link D-Bus into the viewer (Qt6::DBus) instead of pulling libdbus-1.so.3 at runtime.
+# A distro libdbus-1.so drags in libsystemd (-> libzstd/liblz4/libcap/libgcrypt/libgpg-error) and
+# libselinux (-> libpcre2). Disabling those integrations makes libdbus-1.a depend on ~libc alone, so
+# that whole runtime .so tail disappears while the viewer keeps its single-instance / remote-control
+# D-Bus feature -- it is a pure session-bus client (registers a name + exports an adaptor), so the
+# daemon-side systemd/selinux features are irrelevant. Static-only install (no .so); the Qt build
+# finds it through find_package(DBus1) via the -DDBus1_DIR hint (the CMake package config dbus
+# installs, which imports libdbus-1.a). expat is only a configure-time dep of
+# the dbus daemon; the client libdbus-1 links neither expat nor systemd.
+RUN set -eux; \
+    cd /tmp; \
+    curl -LO https://dbus.freedesktop.org/releases/dbus/dbus-${DBUS_VERSION}.tar.xz; \
+    tar -xf dbus-${DBUS_VERSION}.tar.xz; \
+    cd dbus-${DBUS_VERSION}; \
+    ./configure --prefix=/opt/dbus-${DBUS_VERSION}-static \
+      --enable-static --disable-shared \
+      --disable-systemd --without-systemdsystemunitdir \
+      --disable-selinux --disable-apparmor --disable-libaudit \
+      --disable-tests --disable-asserts \
+      --disable-doxygen-docs --disable-xml-docs --disable-ducktype-docs; \
+    make -j"$(nproc)"; \
+    make install; \
+    cd /; rm -rf /tmp/dbus-${DBUS_VERSION} /tmp/dbus-${DBUS_VERSION}.tar.xz
+
+# Put the static libdbus pkgconfig ahead of the system one so Qt6::DBus resolves to the .a
+ENV PKG_CONFIG_PATH=/opt/dbus-${DBUS_VERSION}-static/lib/pkgconfig:${PKG_CONFIG_PATH}
+
 # Build and install static Qt with Core, Gui, Widgets, Charts, DBus
 ARG QT_PREFIX=/opt/qt-${QT_VERSION}-static
 RUN set -eux; \
@@ -123,6 +150,8 @@ RUN set -eux; \
       -DQT_BUILD_TESTS=OFF \
       -DQT_BUILD_EXAMPLES=OFF \
       -DQT_FEATURE_dbus=ON \
+      -DQT_FEATURE_dbus_linked=ON \
+      -DDBus1_DIR=/opt/dbus-${DBUS_VERSION}-static/lib/cmake/DBus1 \
       -DQT_FEATURE_xcb=ON \
       -DQT_FEATURE_xcb_xlib=OFF \
       -DQT_FEATURE_xkbcommon_x11=ON \
@@ -130,6 +159,7 @@ RUN set -eux; \
       -DQT_FEATURE_opengl_desktop=ON \
       -DQT_FEATURE_opengl_dynamic=OFF \
       -DQT_FEATURE_vulkan=OFF \
+      -DQT_FEATURE_glib=OFF \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_PREFIX=${QT_PREFIX} \
       -DCMAKE_C_COMPILER=${CC} \