diff --git a/.github/workflows/appimage-build.yml b/.github/workflows/appimage-build.yml
new file mode 100644
index 00000000..f36a14d4
--- /dev/null
+++ b/.github/workflows/appimage-build.yml
@@ -0,0 +1,121 @@
+name: ZoiteChat AppImage Build
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  appimage_build:
+    runs-on: ubuntu-24.04
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install build dependencies
+        run: |
+          set -eux
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential pkg-config meson ninja-build cmake \
+            gettext \
+            libcanberra-dev libdbus-glib-1-dev libglib2.0-dev \
+            libgtk2.0-dev libgtk-3-dev \
+            libgtk-3-bin libglib2.0-bin shared-mime-info gsettings-desktop-schemas \
+            libluajit-5.1-dev libpci-dev libperl-dev libssl-dev \
+            python3-dev python3-cffi mono-devel desktop-file-utils \
+            patchelf file curl
+
+      - name: Configure
+        run: |
+          set -eux
+          rm -rf build
+          meson setup build \
+            --prefix=/usr \
+            -Dtext-frontend=true \
+            -Dtheme-manager=true \
+            -Dauto_features=enabled
+
+      - name: Build
+        run: |
+          set -eux
+          ninja -C build
+
+      - name: Install to AppDir
+        run: |
+          set -eux
+          rm -rf AppDir
+          DESTDIR="${PWD}/AppDir" ninja -C build install
+
+      - name: Build AppImage
+        env:
+          APPIMAGE_EXTRACT_AND_RUN: 1
+          DEPLOY_GTK_VERSION: 3
+          LDAI_NO_APPSTREAM: 1
+        run: |
+          set -eux
+
+          curl -fL --retry 3 -o linuxdeploy-x86_64.AppImage \
+            https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          chmod +x linuxdeploy-x86_64.AppImage
+
+          curl -fL --retry 3 -o linuxdeploy-plugin-gtk \
+            https://raw.githubusercontent.com/linuxdeploy/linuxdeploy-plugin-gtk/master/linuxdeploy-plugin-gtk.sh
+          chmod +x linuxdeploy-plugin-gtk
+          export PATH="${PWD}:${PATH}"
+
+          # Bundle CA certificates into the AppDir
+          install -Dm644 /etc/ssl/certs/ca-certificates.crt \
+            AppDir/etc/ssl/certs/ca-certificates.crt
+
+          # Custom AppRun: preserve typical AppDir runtime paths AND force CA bundle
+          cat > AppRun <<'EOF'
+          #!/bin/sh
+          set -eu
+
+          APPDIR="${APPDIR:-$(dirname "$(readlink -f "$0")")}"
+
+          export PATH="$APPDIR/usr/bin:${PATH:-/usr/bin:/bin}"
+          export LD_LIBRARY_PATH="$APPDIR/usr/lib:$APPDIR/usr/lib/x86_64-linux-gnu:${LD_LIBRARY_PATH:-}"
+          export XDG_DATA_DIRS="$APPDIR/usr/share:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+
+          if [ -d "$APPDIR/usr/share/glib-2.0/schemas" ]; then
+            export GSETTINGS_SCHEMA_DIR="$APPDIR/usr/share/glib-2.0/schemas${GSETTINGS_SCHEMA_DIR:+:$GSETTINGS_SCHEMA_DIR}"
+          fi
+
+          if [ -d "$APPDIR/usr/lib/x86_64-linux-gnu/gio/modules" ]; then
+            export GIO_EXTRA_MODULES="$APPDIR/usr/lib/x86_64-linux-gnu/gio/modules${GIO_EXTRA_MODULES:+:$GIO_EXTRA_MODULES}"
+          elif [ -d "$APPDIR/usr/lib/gio/modules" ]; then
+            export GIO_EXTRA_MODULES="$APPDIR/usr/lib/gio/modules${GIO_EXTRA_MODULES:+:$GIO_EXTRA_MODULES}"
+          fi
+
+          # OpenSSL trust store override (fixes “unable to get local issuer certificate (20)”)
+          export SSL_CERT_FILE="${SSL_CERT_FILE:-$APPDIR/etc/ssl/certs/ca-certificates.crt}"
+          export SSL_CERT_DIR="${SSL_CERT_DIR:-$APPDIR/etc/ssl/certs}"
+          export CURL_CA_BUNDLE="${CURL_CA_BUNDLE:-$SSL_CERT_FILE}"
+
+          exec "$APPDIR/usr/bin/zoitechat" "$@"
+          EOF
+          chmod +x AppRun
+
+          VERSION="$(git describe --tags --always)"
+
+          ./linuxdeploy-x86_64.AppImage \
+            --appdir AppDir \
+            --desktop-file AppDir/usr/share/applications/io.github.Zoitechat.desktop \
+            --icon-file AppDir/usr/share/icons/hicolor/48x48/apps/io.github.Zoitechat.png \
+            --custom-apprun ./AppRun \
+            --plugin gtk \
+            --output appimage
+
+          appimage_path="$(ls -1 *.AppImage | grep -v linuxdeploy | head -n 1)"
+          mv "$appimage_path" "Zoitechat-${VERSION}-x86_64.AppImage"
+
+      - name: Upload AppImage artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: zoitechat-appimage
+          path: Zoitechat-*-x86_64.AppImage