diff --git a/setup-desktop.sh b/setup-desktop.sh
index a45ce6c..3b2efba 100755
--- a/setup-desktop.sh
+++ b/setup-desktop.sh
@@ -38,24 +38,14 @@ export PATH="$HOME/.npm-global/bin:$PATH"
 npm install -g @anthropic-ai/claude-code
 ok "Claude Code installiert"
 
-# ── 3. PrusaSlicer ──────────────────────────────────────────────────────
-echo -e "\n=== 3/5 PrusaSlicer AppImage ==="
-mkdir -p ~/Applications
-PRUSA_URL="https://github.com/prusa3d/PrusaSlicer/releases/download/version_2.8.1/PrusaSlicer-2.8.1+linux-x64-GTK3-202410181354.AppImage"
-if [[ ! -f ~/Applications/PrusaSlicer.AppImage ]]; then
-    wget -q --show-progress -O ~/Applications/PrusaSlicer.AppImage "$PRUSA_URL"
-    chmod +x ~/Applications/PrusaSlicer.AppImage
+# ── 3. PrusaSlicer (Flatpak) ──────────────────────────────────────────────
+echo -e "\n=== 3/5 PrusaSlicer ==="
+if ! command -v flatpak &>/dev/null; then
+    sudo apt install -y flatpak
 fi
-mkdir -p ~/.local/share/applications
-cat > ~/.local/share/applications/prusaslicer.desktop <<EOF
-[Desktop Entry]
-Name=PrusaSlicer
-Exec=$HOME/Applications/PrusaSlicer.AppImage
-Icon=prusaslicer
-Type=Application
-Categories=Graphics;
-EOF
-ok "PrusaSlicer installiert"
+flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
+flatpak install --user -y flathub com.prusa3d.PrusaSlicer
+ok "PrusaSlicer installiert (Flatpak)"
 
 # ── 4. Dot-Files ────────────────────────────────────────────────────────
 echo -e "\n=== 4/5 Dot-Files ==="