diff --git a/.gitignore b/.gitignore
index 9666d11842..62c4b718ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,8 +55,8 @@ hie.yaml
 *~
 dev-tools/*.cabal
 booster/*.cabal
-/booster/scripts/logs
-/booster/scripts/bug-reports
+/scripts/logs
+/scripts/bug-reports
 /booster/test/rpc-integration/resources/*.dylib
 /booster/test/*/definition/*kompiled/
 
diff --git a/scripts/booster-analysis.sh b/scripts/booster-analysis.sh
index fb4c5509a6..098f7ad600 100755
--- a/scripts/booster-analysis.sh
+++ b/scripts/booster-analysis.sh
@@ -18,11 +18,11 @@ nix_shell() {
 
 nix_shell "cabal build kore-rpc-booster"
 
-export SERVER=$(nix_shell "cabal exec which kore-rpc-booster")
+export SERVER=$(nix_shell "cabal exec which kore-rpc-booster" | tail -1)
 
 nix_shell "cabal build kore-rpc-client"
 
-export CLIENT=$(nix_shell "cabal exec which kore-rpc-client")
+export CLIENT=$(nix_shell "cabal exec which kore-rpc-client" | tail -1)
 
 export LOG_DIR=${LOG_DIR:-"$BUG_REPORT_DIR-logs"}
 
@@ -37,7 +37,7 @@ export PLUGIN_DIR=$(nix build github:runtimeverification/blockchain-k-plugin/$PL
 
 run_tarball(){
   echo "######## $1 ########";
-  $SCRIPT_DIR/run-with-tarball.sh $1 -l Aborts --print-stats 2>&1 | tee $LOG_DIR/$(basename $1).out;
+  $SCRIPT_DIR/run-with-tarball.sh "$1" -l Aborts --print-stats 2>&1 | tee "$LOG_DIR/$(basename "$1").out";
 }
 
 export -f run_tarball
diff --git a/scripts/performance-tests-mx.sh b/scripts/performance-tests-mx.sh
index edd035c460..313f8c79a0 100755
--- a/scripts/performance-tests-mx.sh
+++ b/scripts/performance-tests-mx.sh
@@ -47,12 +47,12 @@ git clone --depth 1 --branch $MX_VERSION https://github.com/runtimeverification/
 cd mx-backend
 
 if [[ $MX_VERSION == "master" ]]; then
-  MX_VERSION=$(git name-rev --tags --name-only $(git rev-parse HEAD))
+  MX_VERSION=$(git rev-parse --short HEAD)
 else
   MX_VERSION="${MX_VERSION//\//-}"
 fi
 
-git submodule update --init --recursive --depth 1 kmxwasm/k-src/mx-semantics/
+git submodule update --init --recursive --depth 1
 
 BUG_REPORT=''
 POSITIONAL_ARGS=()
@@ -78,17 +78,17 @@ done
 set -- "${POSITIONAL_ARGS[@]}" # restore positional parameters
 
 
-feature_shell "poetry -C kmxwasm install && make -C kmxwasm kbuild-haskell"
+feature_shell "make kmxwasm && make build"
 
 
 mkdir -p $SCRIPT_DIR/logs
 
-feature_shell "make -C kmxwasm test-booster TEST_ARGS='$BUG_REPORT' && make -C kmxwasm test-integration TEST_ARGS='$BUG_REPORT' | tee $SCRIPT_DIR/logs/mx-$MX_VERSION-$FEATURE_BRANCH_NAME.log"
+feature_shell "(make -C kmxwasm test-booster TEST_ARGS='$BUG_REPORT' && make -C kmxwasm test-integration TEST_ARGS='$BUG_REPORT') | tee $SCRIPT_DIR/logs/mx-$MX_VERSION-$FEATURE_BRANCH_NAME.log"
 killall kore-rpc-booster || echo "No zombie processes found"
 
 if [ -z "$BUG_REPORT" ]; then
 if [ ! -e "$SCRIPT_DIR/logs/mx-$MX_VERSION-master-$MASTER_COMMIT_SHORT.log" ]; then
-  master_shell "make -C kmxwasm test-booster && make -C kmxwasm test-integration | tee $SCRIPT_DIR/logs/mx-$MX_VERSION-master-$MASTER_COMMIT_SHORT.log"
+  master_shell "(make -C kmxwasm test-booster && make -C kmxwasm test-integration) | tee $SCRIPT_DIR/logs/mx-$MX_VERSION-master-$MASTER_COMMIT_SHORT.log"
   killall kore-rpc-booster || echo "No zombie processes found"
 fi
 
diff --git a/scripts/run-with-tarball.sh b/scripts/run-with-tarball.sh
index 245f8521db..fd9e4ed59d 100755
--- a/scripts/run-with-tarball.sh
+++ b/scripts/run-with-tarball.sh
@@ -14,7 +14,7 @@ set -exo pipefail
 tarball=${1?"Tarball argument missing"}
 shift
 
-tarname=$(basename $tarball)
+tarname=$(basename "$tarball")
 
 booster=${BOOSTER:-$(realpath $(dirname $0)/..)}
 server=${SERVER:-$booster/.build/kore/bin/kore-rpc-booster}
@@ -49,7 +49,7 @@ trap 'rm -rf "$TEMPD"'  EXIT
 
 if [ -z "$DEFINITION" ]; then
     # unpack definition file from tarball, into $TEMPD dir
-    tar xf $tarball -O definition.kore > $TEMPD/definition.kore
+    tar xf "$tarball" -O definition.kore > $TEMPD/definition.kore
     kore=$TEMPD/definition.kore
 else
     kore=$DEFINITION
@@ -66,7 +66,7 @@ MODULE=$(grep -o -e "^module [A-Z0-9-]*" $kore | tail -1 | sed -e "s/module //")
 
 # build llvm backend unless provided
 if [ -z "${LLVM_LIB}" ]; then
-    tar xf $tarball -O llvm_definition/definition.kore > $TEMPD/llvm-definition.kore
+    tar xf "$tarball" -O llvm_definition/definition.kore > $TEMPD/llvm-definition.kore
 
     LLVM_DEFINITION_SHA=$(sha1sum $TEMPD/llvm-definition.kore | awk '{ print $1 }')
 
@@ -135,7 +135,7 @@ server_port=$($LSOF -a -p${server_pid} -sTCP:LISTEN -iTCP | grep ${server_pid} |
 echo "Server listening on port ${server_port}"
 
 
-echo "Running requests from $tarball against the server: $client run-tarball $tarball --keep-going -p ${server_port} -h 127.0.0.1"
-$client run-tarball $tarball --keep-going -p ${server_port} -h 127.0.0.1
+echo "Running requests from $tarball against the server: $client run-tarball '$tarball' --keep-going -p ${server_port} -h 127.0.0.1"
+$client run-tarball "$tarball" --keep-going -p ${server_port} -h 127.0.0.1
 
-echo "Done with $tarball"
+echo "Done with '$tarball'"