diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e3cf9b9c..ddfadc4c 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -202,45 +202,24 @@ jobs:
   # NOTE: This job uses a fixed Qt version (set in the 'qt-version' key below)!
   # So, remember to keep it updated whenever a new Qt version is available on aqtinstall.
   appimage-aqtinstall:
-    name: AppImage (${{ matrix.build-type }}, Qt ${{ matrix.qt-version }}, ${{ matrix.container != '' && matrix.container || matrix.os }})
+    name: AppImage (${{ matrix.build-type }}, Qt ${{ matrix.qt-version }}, ${{ matrix.image }})
     runs-on: ${{ matrix.os }}
-    container: ${{ matrix.container }}
+    container:
+      image: zjeffer/notes:${{ matrix.image }}
     strategy:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
-            container: ubuntu:20.04
+          - os: ubuntu-22.04
             build-type: release
             qt-version: 5.15.2
-
-          - os: ubuntu-20.04
-            container: ubuntu:20.04
+            image: ubuntu-aqtinstall-5
+          
+          - os: ubuntu-22.04
             build-type: release
             qt-version: 6.4.3
+            image: ubuntu-aqtinstall-6
     steps:
-      - name: Install other dependencies in docker container
-        # - appstream: Used to validate the AppStream metadata file.
-        # - cmake: Used to help build the application.
-        # - curl: Used to download the linuxdeploy AppImage tool.
-        # - desktop-file-utils: Used to validate the desktop file.
-        # - git: To clone this repository.
-        # - libfontconfig1: Used as dependency of the resulting AppImage.
-        # - libxcb-cursor0: Used as dependency of the resulting AppImage.
-        # - libxkbcommon-x11-0: Used as dependency of the resulting AppImage.
-        # - python3/python3-pip: Used by aqtinstall.
-        # - sudo: Used by most GitHub actions to install things.
-        if: matrix.container != ''
-        run: |
-          # Configure the timezone, otherwise 'install-qt-action' gets stuck at 'configuring tzdata'.
-          ln -sf /usr/share/zoneinfo/UTC /etc/localtime
-          echo UTC > /etc/timezone
-          # install packages
-          apt update
-          apt install -y appstream cmake curl desktop-file-utils git libfontconfig1 libxcb-cursor0 libxkbcommon-x11-0 python3 python3-pip sudo
-          # Upgrade to the latest setuptools, as Ubuntu's python3-setuptools package has compatibility issues with aqtinstall.
-          python3 -m pip install --upgrade setuptools
-
       - name: Checkout code
         uses: actions/checkout@v3
         with:
@@ -272,21 +251,6 @@ jobs:
           echo "artifact_name=${artifact_name}" >> "${GITHUB_OUTPUT}"
           echo "file_name=${file_name}" >> "${GITHUB_OUTPUT}"
 
-      - name: Install Qt ${{ matrix.qt-version }} (aqtinstall)
-        uses: jurplel/install-qt-action@v3
-        with:
-          version: ${{ matrix.qt-version }}
-          # Prevents the installation of a custom Python build, potentially linked against an unsupported version of glibc.
-          setup-python: false
-          cache: true
-
-      - name: Install Qt 6 system dependencies
-        # 'libmysqlclient21' is actually only needed by linuxdeploy for Qt 6 builds. I'm including it here just for convenience.
-        if: startsWith(matrix.qt-version, '6.')
-        run: |
-          sudo apt update
-          sudo apt install -y libxkbcommon-dev libmysqlclient21
-
       # TODO: Figure out why this error only occurs on the Linux container when building with -DGIT_REVISION=ON
       # The error: fatal: detected dubious ownership in repository
       - name: Prevent git's dubious ownership message
@@ -327,12 +291,6 @@ jobs:
           curl -fLO --retry 10 https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
           chmod +x linuxdeploy-plugin-qt-x86_64.AppImage
 
-      - name: Install useless dependencies to make linuxdeploy happy
-        # We won't use any of these sql drivers, but install them anyway so linuxdeploy doesn't fail.
-        run: |
-          sudo apt update
-          sudo apt install -y libpq5 libodbc1
-
       - name: Deploy (${{ matrix.build-type }})
         env:
           APPIMAGE_EXTRACT_AND_RUN: 1
@@ -363,7 +321,7 @@ jobs:
           fi
 
       - name: Validate AppStream metadata
-        if: matrix.container != 'ubuntu:20.04'
+        if: matrix.image != 'ubuntu:20.04'
         run: |
           cd build/Notes
           appstreamcli validate --verbose 'usr/share/metainfo/${{ env.APP_ID }}.metainfo.xml'
diff --git a/Dockerfiles/README.md b/Dockerfiles/README.md
new file mode 100644
index 00000000..8f7f88c7
--- /dev/null
+++ b/Dockerfiles/README.md
@@ -0,0 +1,17 @@
+# Docker images for CI/CD
+
+The Dockerfiles in this folder are used to build images for CI/CD pipelines.
+
+### Building images locally
+
+```bash
+docker build -f <path-to-dockerfile> -t <image-name> .
+# for example:
+docker build -f ./ubuntu-aqtinstall-6 -t zjeffer:notes/ubuntu-aqtinstall-6.4.3 .
+```
+
+### Pushing images to Docker Hub
+
+```bash
+docker push <image-name>
+```
diff --git a/Dockerfiles/ubuntu-aqtinstall-5 b/Dockerfiles/ubuntu-aqtinstall-5
new file mode 100644
index 00000000..cd4ef3e0
--- /dev/null
+++ b/Dockerfiles/ubuntu-aqtinstall-5
@@ -0,0 +1,37 @@
+FROM ubuntu:22.04
+
+ENV QT_VERSION=5.15.2
+ENV QT_ARCHITECTURE=gcc_64
+
+# this image can also be used for appimage builds
+# Configure the timezone, otherwise 'install-qt-action' gets stuck at 'configuring tzdata'.
+RUN ln -sf /usr/share/zoneinfo/UTC /etc/localtime \
+    && echo UTC > /etc/timezone
+
+# install packages
+# - appstream: Used to validate the AppStream metadata file.
+# - cmake: Used to help build the application.
+# - curl: Used to download the linuxdeploy AppImage tool.
+# - desktop-file-utils: Used to validate the desktop file.
+# - git: To clone this repository.
+# - libfontconfig1: Used as dependency of the resulting AppImage.
+# - libxcb-cursor0: Used as dependency of the resulting AppImage.
+# - libxkbcommon-x11-0: Used as dependency of the resulting AppImage.
+# - python3/python3-pip: Used by aqtinstall.
+# - sudo: Used by most GitHub actions to install things.
+# - libpq5: Useless, but needed to keep linuxdeploy happy
+# - libodbc1: Useless, but needed to keep linuxdeploy happy
+# - file: Necessary for building the AppImage
+RUN apt update && \ 
+    apt install -y appstream cmake curl desktop-file-utils git libfontconfig1 libxcb-cursor0 libxkbcommon-x11-0 python3 python3-pip sudo \
+    libpq5 libodbc1 file \
+    # qt dependencies
+    build-essential libgl1-mesa-dev libgstreamer-gl1.0-0 libpulse-dev libxcb-glx0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 \
+    libxcb-render-util0 libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-sync1 libxcb-util1 libxcb-xfixes0 libxcb-xinerama0 libxcb1 libxkbcommon-dev libxkbcommon-x11-0 libxcb-xkb-dev \
+    libqt5network5 libqt5sql5 libqt5widgets5 qml-module-qtquick2 qml-module-qtquick-controls2 qml-module-qtquick-window2
+
+RUN python3 -m pip install --upgrade pip setuptools aqtinstall
+
+# use aqtinstall to install qt
+RUN python3 -m aqt install-qt --outputdir /Qt linux desktop $QT_VERSION $QT_ARCHITECTURE
+ENV PATH="/Qt/$QT_VERSION/$QT_ARCHITECTURE/bin:$PATH"
diff --git a/Dockerfiles/ubuntu-aqtinstall-6 b/Dockerfiles/ubuntu-aqtinstall-6
new file mode 100644
index 00000000..09ac4b15
--- /dev/null
+++ b/Dockerfiles/ubuntu-aqtinstall-6
@@ -0,0 +1,40 @@
+FROM ubuntu:22.04
+
+ENV QT_VERSION=6.4.3
+ENV QT_ARCHITECTURE=gcc_64
+
+# this image can also be used for appimage builds
+# Configure the timezone, otherwise 'install-qt-action' gets stuck at 'configuring tzdata'.
+RUN ln -sf /usr/share/zoneinfo/UTC /etc/localtime \
+    && echo UTC > /etc/timezone
+
+# install packages
+# - appstream: Used to validate the AppStream metadata file.
+# - cmake: Used to help build the application.
+# - curl: Used to download the linuxdeploy AppImage tool.
+# - desktop-file-utils: Used to validate the desktop file.
+# - git: To clone this repository.
+# - libfontconfig1: Used as dependency of the resulting AppImage.
+# - libxcb-cursor0: Used as dependency of the resulting AppImage.
+# - libxkbcommon-x11-0: Used as dependency of the resulting AppImage.
+# - python3/python3-pip: Used by aqtinstall.
+# - sudo: Used by most GitHub actions to install things.
+# - libpq5: Useless, but needed to keep linuxdeploy happy
+# - libodbc1: Useless, but needed to keep linuxdeploy happy
+# - file: Necessary for building the AppImage
+RUN apt update && \ 
+    apt install -y appstream cmake curl desktop-file-utils git libfontconfig1 libxcb-cursor0 libxkbcommon-x11-0 python3 python3-pip sudo \
+    libpq5 libodbc1 file \
+    # qt dependencies
+    build-essential libgl1-mesa-dev libgstreamer-gl1.0-0 libpulse-dev libxcb-glx0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 \
+    libxcb-render-util0 libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-sync1 libxcb-util1 libxcb-xfixes0 libxcb-xinerama0 libxcb1 libxkbcommon-dev libxkbcommon-x11-0 libxcb-xkb-dev \
+    libqt6network6 libqt6sql6 libqt6widgets6 qml6-module-qtqml-workerscript qml6-module-qtquick-controls qml6-module-qtquick-layouts qml6-module-qtquick-particles qml6-module-qtquick-templates qml6-module-qtquick-window qt6-qpa-plugins
+
+RUN python3 -m pip install --upgrade pip setuptools aqtinstall
+
+# qt6 dependencies
+RUN apt install -y libxkbcommon-dev libmysqlclient21
+
+# use aqtinstall to install qt
+RUN python3 -m aqt install-qt --outputdir /Qt linux desktop $QT_VERSION $QT_ARCHITECTURE
+ENV PATH="/Qt/$QT_VERSION/$QT_ARCHITECTURE/bin:$PATH"