diff --git a/document/linux/config/bash/module/bootstrap.sh b/document/linux/config/bash/module/bootstrap.sh
index 6f0c4e2..8b77104 100644
--- a/document/linux/config/bash/module/bootstrap.sh
+++ b/document/linux/config/bash/module/bootstrap.sh
@@ -22,3 +22,9 @@ bootstrap_grub()
   echo 'GRUB_HIDDEN_TIMEOUT=' >> /etc/default/grub
   grub2-mkconfig -o /etc/grub2.cfg
 }
+
+# install ffmpeg.
+bootstrap_ffmpeg()
+{
+  flatpak install org.kde.kdenlive
+}