diff --git a/rocky8/install-openscad.sh b/rocky8/install-openscad.sh
new file mode 100644
index 0000000..9af50b8
--- /dev/null
+++ b/rocky8/install-openscad.sh
@@ -0,0 +1,46 @@
+yum install freeglut freeglut-devel libGLEW glew-devel \
+    qt5-devel qscintilla-qt5 qscintilla-qt5-devel libzip libzip-devel \
+    gmp gmp-devel mpfr mpfr-devel cmake boost boost-devel eigen3-devel \
+    fontconfig fontconfig-devel freetype freetype-devel harfbuzz harfbuzz-devel \
+    bison flex double-conversion double-conversion-devel
+
+wget https://www.opencsg.org/OpenCSG-1.5.1.tar.gz
+tar -xzf OpenCSG-1.5.1.tar.gz
+cd OpenCSG-1.5.1
+
+make
+sudo make install
+
+ldconfig /usr/local/lib
+
+cd ..
+
+wget https://github.com/CGAL/cgal/archive/refs/tags/releases/CGAL-4.14.3.tar.gz -O cgal-4.14.3.tar.gz
+tar -xzf cgal-4.14.3.tar.gz
+cd cgal-releases-CGAL-4.14.3/
+
+cmake -DCMAKE_BUILD_TYPE=Release .
+make
+make install
+
+cd ../
+
+wget https://github.com/3MFConsortium/lib3mf/archive/refs/tags/v2.2.0.tar.gz -O lib3mf.tar.gz
+tar -xzf lib3mf.tar.gz
+cd lib3mf-2.2.0/
+
+cmake -DCMAKE_BUILD_TYPE=Release -DLIB3MF_TESTS=Off .
+make
+make install
+
+cd ../
+
+
+wget https://files.openscad.org/openscad-2021.01.src.tar.gz
+tar -xzf openscad-2021.01.src.tar.gz
+cd openscad-2021.01/
+
+qmake-qt5 openscad.pro
+make CXX=clang++
+sudo make install
+
diff --git a/rocky8/install-signal.sh b/rocky8/install-signal.sh
index 36c1d87..fe48c3c 100755
--- a/rocky8/install-signal.sh
+++ b/rocky8/install-signal.sh
@@ -1,5 +1,7 @@
 #! /bin/bash
 
+rm -rf ~/.cache/yarn/
+
 yum -y module install nodejs:16
 yum -y install git-lfs nodejs-devel
 
@@ -17,6 +19,9 @@
 rm package.json
 mv tmp.json package.json
 
+git add .
+git commit -m'dummy commit to fix yarn'
+
 yarn install --frozen-lockfile
 
 # cat > local-development.json << EOF
@@ -33,7 +38,11 @@
 yarn build-release
 
 mkdir -p /opt/
-mv ./release/linux-unpacked/ /opt/signal/
+if [ -f /opt/signal]
+then
+    rm -rf /opt/signal/
+fi
+cp -r ./release/linux-unpacked/ /opt/signal/
 
 cd ..
 rm -rf signal/