diff --git a/Dockerfile b/Dockerfile
index acc23cf7..15a25688 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,37 +40,45 @@ ENV DEBIAN_FRONTEND noninteractive
 ENV UHD_IMAGES_DIR /usr/share/uhd/images
 ENV PATH="${PATH}:/root/.local/bin"
 RUN mkdir -p /data/gamutrf
-RUN apt-get update && apt-get install --no-install-recommends -y -q \
-    ca-certificates \
-    libblas3 \
-    libboost-iostreams1.74.0 \
-    libboost-program-options1.74.0 \
-    libboost-thread1.74.0 \
-    libcairo2 \
-    libev4 \
-    libfftw3-3 \
-    libgl1 \
-    libglib2.0-0 \
-    liblapack3 \
-    libopencv-core4.5d \
-    libopencv-imgcodecs4.5d \
-    libopencv-imgproc4.5d \
-    librtlsdr0 \
-    libspdlog1 \
-    libuhd4.1.0 \
-    libunwind8 \
-    libvulkan1 \
-    libzmq5 \
-    mesa-vulkan-drivers \
-    python3 \
-    python3-pyqt5 \
-    python3-pyqt5.sip \
-    python3-zmq \
-    sox \
-    sudo \
-    wget \
-    uhd-host \
-    zstd && \
+# install nvidia's vulkan support if x86.
+RUN if [ "$(arch)" = "x86_64" ] ; then \
+        apt-get update && \
+        apt-get install -y --no-install-recommends ca-certificates dirmngr gpg-agent gpg wget && \
+        apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/$(arch)/3bf863cc.pub && \
+        echo "deb http://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/$(arch)/ /" | tee /etc/apt/sources.list.d/nvidia.list && \
+        apt-get update && \
+        apt-get install -y --no-install-recommends libnvidia-gl-545 ; \
+    fi && \
+    apt-get update && apt-get install -y --no-install-recommends \
+        ca-certificates \
+        libblas3 \
+        libboost-iostreams1.74.0 \
+        libboost-program-options1.74.0 \
+        libboost-thread1.74.0 \
+        libcairo2 \
+        libev4 \
+        libfftw3-3 \
+        libgl1 \
+        libglib2.0-0 \
+        liblapack3 \
+        libopencv-core4.5d \
+        libopencv-imgcodecs4.5d \
+        libopencv-imgproc4.5d \
+        librtlsdr0 \
+        libspdlog1 \
+        libuhd4.1.0 \
+        libunwind8 \
+        libvulkan1 \
+        libzmq5 \
+        mesa-vulkan-drivers \
+        python3 \
+        python3-pyqt5 \
+        python3-pyqt5.sip \
+        python3-zmq \
+        sox \
+        uhd-host \
+        wget \
+        zstd && \
     apt-get -y -q clean && rm -rf /var/lib/apt/lists/*
 WORKDIR /gamutrf
 RUN echo "$(find /gamutrf/gamutrf -type f -name \*py -print)"|xargs grep -Eh "^(import|from)\s"|grep -Ev "gamutrf"|sort|uniq|python3
diff --git a/docker/Dockerfile.vkfft b/docker/Dockerfile.vkfft
index b071ed12..febac479 100644
--- a/docker/Dockerfile.vkfft
+++ b/docker/Dockerfile.vkfft
@@ -8,11 +8,25 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libvulkan-dev \
   python3-dev
 WORKDIR /root
-RUN git clone https://github.com/DTolm/VkFFT -b v1.3.1
-RUN sed -i -E 's/GIT_TAG\s+"origin.main"/GIT_TAG "13.0.0"/g' VkFFT/CMakeLists.txt
+RUN git clone https://github.com/DTolm/VkFFT -b v1.3.2
 WORKDIR /root/VkFFT/build
-RUN CMAKE_BUILD_TYPE=Release cmake .. && make -j "$(nproc)"
+RUN CMAKE_BUILD_TYPE=Release cmake -DGLSLANG_GIT_TAG=13.0.0 .. && make -j "$(nproc)"
 
 FROM ubuntu:22.04
 # TODO: ideally, should be packaged such that cmake can find it.
+RUN if [ "$(arch)" = "x86_64" ] ; then \
+        apt-get update && \
+        apt-get install -y --no-install-recommends ca-certificates dirmngr gpg-agent gpg wget && \
+        apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/$(arch)/3bf863cc.pub && \
+        echo "deb http://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/$(arch)/ /" | tee /etc/apt/sources.list.d/nvidia.list && \
+        apt-get update && \
+        apt-get install -y --no-install-recommends libnvidia-gl-545 ; \
+    fi && \
+    apt-get update && apt-get install -y --no-install-recommends \
+        libvulkan1
 COPY --from=vkfft-builder /root/VkFFT /root/VkFFT
+CMD ["/root/VkFFT/build/VkFFT_TestSuite", "-devices"]
+
+# Test that GPU can be accessed by VkFFT:
+# $ docker run --gpus all --device /dev/dri/renderD128:/dev/dri/renderD128 -ti iqtlabs/gamutrf-vkfft
+# Device id: 0 name: NVIDIA GeForce RTX 4070 Ti API:1.3.260
diff --git a/orchestrator.yml b/orchestrator.yml
index 04eb4d0d..ea7395ba 100644
--- a/orchestrator.yml
+++ b/orchestrator.yml
@@ -40,6 +40,14 @@ services:
     devices:
       - /dev/bus/usb:/dev/bus/usb
       - /dev/dri/renderD128:/dev/dri/renderD128
+    # Uncomment when using Nvidia GPU (container toolkit etc must be installed)
+    #deploy:
+    #  resources:
+    #     reservations:
+    #        devices:
+    #          - driver: nvidia
+    #            count: 1
+    #            capabilities: [gpu]
     command:
       - gamutrf-scan
       - --logaddr=0.0.0.0
@@ -51,6 +59,7 @@ services:
       - --nfft=256
       - --sweep-sec=8
       - --db_clamp_floor=-150
+      - --fft_batch_size=256
     healthcheck:
       test: [CMD, "/gamutrf/bin/scanhc.sh", "9000"]
       interval: 10s