diff --git a/.gitignore b/.gitignore
index 1a46d1347a..180c1a5cc0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,9 +30,3 @@ GPATH
 .submodule
 *.built
 *.completed
-
-/esp-idf*
-/esp-quick-toolchain/
-/esp32/
-/rp2040/
-/samples/Basic_Serial/files/
diff --git a/Sming/Arch/Esp32/Tools/install.sh b/Sming/Arch/Esp32/Tools/install.sh
index 571a71bde6..7e252ae1d5 100755
--- a/Sming/Arch/Esp32/Tools/install.sh
+++ b/Sming/Arch/Esp32/Tools/install.sh
@@ -32,26 +32,26 @@ case $DIST in
         ;;
 
     *)
-	_OK=1
-	_COMMANDS=(dfu-util bison flex gperf)
-	for _COMMAND in "${_COMMANDS[@]}"; do
-	    if ! [ -x $(command -v "${_COMMAND}") ]; then
-		_OK=0
-		echo "Install programm ${_COMMAND}"
-	    fi
-	done
-	_INCLUDES=("/usr/include/ffi.h" "/usr/include/ssl/ssl.h")
-	for _INCLUDE in "${_INCLUDES[@]}"; do
-	    if ! [ -f "${_INCLUDE}" ]; then
-		_OK=0
-		echo "Install development package providing ${_INCLUDE}"
-	    fi
-	done
-	if [ $_OK != 1 ]; then
-	    echo "ABORTING"
-	    exit 1
-	fi
-	PACKAGES=()
+        TOOLS_MISSING=0
+        COMMANDS=(dfu-util bison flex gperf)
+        for COMMAND in "${COMMANDS[@]}"; do
+            if ! [ -x $(command -v "${COMMAND}") ]; then
+                TOOLS_MISSING=1
+                echo "Install programm ${COMMAND}"
+            fi
+        done
+        INCLUDES=("/usr/include/ffi.h" "/usr/include/ssl/ssl.h")
+        for INCLUDE in "${INCLUDES[@]}"; do
+            if ! [ -f "${INCLUDE}" ]; then
+                TOOLS_MISSING=1
+                echo "Install development package providing ${INCLUDE}"
+            fi
+        done
+        if [ $TOOLS_MISSING != 0 ]; then
+            echo "ABORTING"
+            exit 1
+        fi
+        PACKAGES=()
         ;;
 
 esac
diff --git a/Tools/export.sh b/Tools/export.sh
index f52b5449d7..602bc4423a 100755
--- a/Tools/export.sh
+++ b/Tools/export.sh
@@ -24,8 +24,7 @@ if [ -z "$SMING_HOME" ]; then
     else
         _SOURCEDIR=$(dirname "${BASH_SOURCE[0]}")
     fi
-    _SMIG_BASE=$(realpath "$_SOURCEDIR/..")
-    SMING_HOME=${_SMIG_BASE}"/Sming"
+    SMING_HOME=$(realpath "$_SOURCEDIR/../Sming")
     export SMING_HOME
     echo "SMING_HOME: $SMING_HOME"
 fi
@@ -34,14 +33,14 @@ fi
 export PYTHON=${PYTHON:=$(which python3)}
 
 # Esp8266
-export ESP_HOME=${ESP_HOME:=${_SMIG_BASE}/esp-quick-toolchain}
+export ESP_HOME=${ESP_HOME:=/opt/esp-quick-toolchain}
 
 # Esp32
-export IDF_PATH=${IDF_PATH:=${_SMIG_BASE}/esp-idf}
-export IDF_TOOLS_PATH=${IDF_TOOLS_PATH:=${_SMIG_BASE}/esp32}
+export IDF_PATH=${IDF_PATH:=/opt/esp-idf}
+export IDF_TOOLS_PATH=${IDF_TOOLS_PATH:=/opt/esp32}
 
 # Rp2040
-export PICO_TOOLCHAIN_PATH=${PICO_TOOLCHAIN_PATH:=${_SMIG_BASE}/rp2040}
+export PICO_TOOLCHAIN_PATH=${PICO_TOOLCHAIN_PATH:=/opt/rp2040}
 
 # Provide non-apple CLANG (e.g. for rbpf library)
 if [ -n "$GITHUB_ACTIONS" ] && [ "$(uname)" = "Darwin" ]; then
diff --git a/Tools/install.sh b/Tools/install.sh
index 7dd3a00cec..ec22c8f3da 100755
--- a/Tools/install.sh
+++ b/Tools/install.sh
@@ -99,9 +99,9 @@ elif [ -n "$(command -v dnf)" ]; then
     DIST=fedora
     PKG_INSTALL="sudo dnf install -y"
 else
-    _OK=1
+    TOOLS_MISSING=0
     echo "Unsupported distribution"
-    _REQUIRED_TOOLS=(
+    REQUIRED_TOOLS=(
             ccache \
             cmake \
             curl \
@@ -114,13 +114,13 @@ else
             pip3 \
 	    wget \
 	    )
-    for _TOOL in "${_REQUIRED_TOOLS[@]}"; do
-	if ! [ -x $(command -v "${_TOOL}") ]; then
-	    _OK=0
-	    echo "Install required tool ${_TOOL}"
+    for TOOL in "${REQUIRED_TOOLS[@]}"; do
+	if ! [ -x $(command -v "${TOOL}") ]; then
+	    TOOLS_MISSING=1
+	    echo "Install required tool ${TOOL}"
 	fi
     done
-    if [ $_OK != 1 ]; then
+    if [ $TOOLS_MISSING != 0 ]; then
     if [ $sourced = 1 ]; then
         return 1
     else
diff --git a/samples/Basic_Serial/.gitignore b/samples/Basic_Serial/.gitignore
new file mode 100644
index 0000000000..bb97907eef
--- /dev/null
+++ b/samples/Basic_Serial/.gitignore
@@ -0,0 +1 @@
+/files/