diff --git a/.github/workflows/appimage.yml b/.github/workflows/appimage.yml
index 001e392d..e13786b3 100644
--- a/.github/workflows/appimage.yml
+++ b/.github/workflows/appimage.yml
@@ -24,4 +24,4 @@ jobs:
         uses: softprops/action-gh-release@v3
         if: "${{ github.event_name != 'workflow_dispatch' }}"
         with:
-          files: Skyscraper-*.AppImage
+          files: Skyscraper-*.AppImage*
diff --git a/src/compositor.cpp b/src/compositor.cpp
index 477b9453..8c6fe209 100644
--- a/src/compositor.cpp
+++ b/src/compositor.cpp
@@ -294,7 +294,7 @@ GameEntry::Types Compositor::saveAll(GameEntry &game, QString completeBaseName,
                                      bool esdeMiximage) {
     bool createSubfolder = false;
     QString fn = "/" % completeBaseName;
-    QString subPath = getSubpath(game.path);
+    QString subPath = getMediaSubpath(game.path);
     if (subPath != ".") {
         fn.prepend("/" % subPath);
         createSubfolder = true;
@@ -581,7 +581,7 @@ void Compositor::processChildLayers(GameEntry &game, Layer &layer) {
     }
 }
 
-QString Compositor::getSubpath(const QString &absPath) {
+QString Compositor::getMediaSubpath(const QString &absPath) {
     QString subPath = ".";
     if (config->frontend == "esde") {
         // ES-DE expects media files in same subpath (tree structure) as
diff --git a/src/compositor.h b/src/compositor.h
index 441e8c04..8ea32854 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -42,8 +42,7 @@ class Compositor : public QObject {
     void processXml();
     GameEntry::Types saveAll(GameEntry &game, QString completeBaseName,
                              bool isEsde);
-    // TODO: check, does member fit in here?
-    QString getSubpath(const QString &absPath);
+    QString getMediaSubpath(const QString &absPath);
 
 private:
     void addChildLayers(Layer &layer, QXmlStreamReader &xml);
diff --git a/src/scraperworker.cpp b/src/scraperworker.cpp
index 64aa685e..121026d0 100644
--- a/src/scraperworker.cpp
+++ b/src/scraperworker.cpp
@@ -335,7 +335,7 @@ void ScraperWorker::run() {
             }
             // copy extra media files (not part of compositor/artwork)
             const QString baseName = info.completeBaseName();
-            const QString subPath = compositor.getSubpath(game.path);
+            const QString subPath = compositor.getMediaSubpath(game.path);
             frontend->copyMedia(mediaSaved, baseName, subPath, game);
         }
 
diff --git a/supplementary/workflows/appimage b/supplementary/workflows/appimage
index 08f57173..77486a4b 100644
--- a/supplementary/workflows/appimage
+++ b/supplementary/workflows/appimage
@@ -26,11 +26,11 @@ function build_appimage() {
     local _xdg="${1:-}"
     make --ignore-errors distclean || true
     #sed -i "0,/CONFIG += /{s/CONFIG.*/CONFIG += debug/}" skyscraper.pro
-    #sed '/claudio/{s//claudia/;:p;n;bp}'
     # set XDG
     [[ -n "$_xdg" ]] && sed -i "/DEFINES += XDG/{s/#DEFINES/DEFINES/}" skyscraper.pro
     # unset XDG
     [[ -z "$_xdg" ]] && sed -i "/#*DEFINES += XDG/{s//#DEFINES += XDG/}" skyscraper.pro
+
     PREFIX=/usr SYSCONFDIR=/etc qmake6 skyscraper.pro
     jobs=$(getconf _NPROCESSORS_ONLN 2>/dev/null || sysctl -n hw.ncpu)
     rm -rf "$app_dir" || true
@@ -44,7 +44,9 @@ function build_appimage() {
     GLIBC_BASE="2.35" # Ubuntu 22.04 / Debian Bookworm (12)
     #GLIBC_BASE="2.39" # Ubuntu 24.04 / Debian Trixie (13)
     build_host_glibc=$(readelf -V "$app_dir"/usr/bin/Skyscraper 2>/dev/null | grep -o 'GLIBC_[0-9.]*' | sort -V | tail -1| cut -d _ -f2)
+    echo "[*] Testing if Glibc baseline version is matched ..."
     dpkg --compare-versions "$build_host_glibc" le $GLIBC_BASE
+    echo "[+] ... OK"
 
     cat >skyscraper.desktop <<EOF
 [Desktop Entry]
@@ -98,19 +100,27 @@ EOF
     printf -v excl_libs_str ';%s' "${excl_libs2[@]}"
     export LINUXDEPLOY_EXCLUDED_LIBRARIES="${excl_libs_str:1}"
     export DISABLE_COPYRIGHT_FILES_DEPLOYMENT=1
-
+    local output_fn_base="Skyscraper-$VERSION-$ARCH"
+    local zsync_base="gh-releases-zsync|gemba|skyscraper|latest|${output_fn_base}"
+    if [[ -n "$_xdg" ]]; then
+        export LDAI_OUTPUT="${output_fn_base}-$_xdg.AppImage"
+        export LDAI_UPDATE_INFORMATION="${zsync_base}-$_xdg.AppImage.zsync"
+    else
+        export LDAI_OUTPUT="${output_fn_base}.AppImage"
+        export LDAI_UPDATE_INFORMATION="${zsync_base}.AppImage.zsync"
+    fi
     ./linuxdeploy-"$ARCH".AppImage \
         --appdir "$(basename "$app_dir")" \
         --desktop-file skyscraper.desktop \
-        --output appimage --plugin checkrt \
+        --output appimage \
+        --plugin checkrt \
         --plugin qt \
-        --verbosity 2
+        --verbosity 3
     rm skyscraper.desktop
     if [[ -n "$_xdg" ]]; then
-        mv Skyscraper-"$VERSION"-"$ARCH".AppImage Skyscraper-"$VERSION"-"$ARCH"-"$_xdg".AppImage
-        ./Skyscraper-"$VERSION"-"$ARCH"-"$_xdg".AppImage --buildinfo
+        ./"${output_fn_base}"-"$_xdg".AppImage --buildinfo
     else
-        ./Skyscraper-"$VERSION"-"$ARCH".AppImage --buildinfo
+        ./"${output_fn_base}".AppImage --buildinfo
     fi
 }
 
diff --git a/supplementary/workflows/deps b/supplementary/workflows/deps
index 8bddbf95..5f3f7bec 100644
--- a/supplementary/workflows/deps
+++ b/supplementary/workflows/deps
@@ -75,6 +75,7 @@ main() {
     "linux")
       _install build-essential qtbase5-dev qt5-qmake qtbase5-dev-tools
       _install qt6-base-dev qmake6 qt6-base-dev-tools
+      _install zsync # for AppImage Build
       ;;
    esac
 }