diff --git a/install_opi5.sh b/install_opi5.sh
index 5833f69..8b6540a 100755
--- a/install_opi5.sh
+++ b/install_opi5.sh
@@ -26,6 +26,13 @@ apt-get purge --yes --quiet snapd
 # remove bluetooth daemon
 apt-get purge --yes --quiet bluez
 
+# remove unused firmware (experimental)
+rm -rf /usr/lib/firmware/mrvl/
+rm -rf /usr/lib/firmware/mellanox/
+rm -rf /usr/lib/firmware/nvidia/
+rm -rf /usr/lib/firmware/intel/
+rm -rf /usr/lib/firmware/amdgpu/
+
 apt-get --yes --quiet autoremove
 
 after=$(df --output=used / | tail -n1)