diff --git a/home-config.sh b/home-config.sh
index 72cd37b..057245e 100755
--- a/home-config.sh
+++ b/home-config.sh
@@ -46,7 +46,7 @@ then
   chmod 700 $HomePath/.ssh
   if [ -e $HomePath/.ssh/authorized_keys ]
   then
-    echo "--- Removing $HomePath/.ssh/authorized_keys ..."
+    echo "--- Renaming $HomePath/.ssh/authorized_keys to authorized_keys.backup ..."
     mv $HomePath/.ssh/authorized_keys $HomePath/.ssh/authorized_keys.backup
   fi
   echo "--- Linking $SourcePath/authorized_keys to $HomePath/.ssh/authorized_keys ..."
diff --git a/nixhome/.bashrc b/nixhome/.bashrc
index 5c2aa66..7d4c751 100644
--- a/nixhome/.bashrc
+++ b/nixhome/.bashrc
@@ -81,18 +81,29 @@ case "$TERM" in
 esac
 
 # nvm settings
-export NVM_DIR="$HOME/.nvm"
-[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
-[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
+if [ -d $HOME/.nvm ]
+then
+  export NVM_DIR="$HOME/.nvm"
+  [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
+  [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
+fi
+
+# let MacOS uses the same variable so that vscode-sshfs can use "$USERPROFILE/.ssh/id_rsa" uniformly.
+export USERPROFILE=$HOME
+
+# add sysconfig to path
+if [ -d /Users/luk.lu/faronear/fon/sysconfig ]
+then
+  export PATH=/Users/luk.lu/faronear/fon/sysconfig:$PATH
+else if [ -d /faronear/fon/sysconfig ]
+  export PATH=/faronear/fon/sysconfig:$PATH
+fi
 
 if [ -f ~/.bashrc_custom ]
 then
 	source ~/.bashrc_custom
 fi
 
-# align for vscode-sshfs in MacOS and windows
-export USERPROFILE=$HOME
-
 ################################################################################
 # End Of File: "~/.bashrc"
 ################################################################################
diff --git a/ssr-install.sh b/ssr-install.sh
index bd8c63f..a1641bc 100755
--- a/ssr-install.sh
+++ b/ssr-install.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 apt update && apt install -y zip
 cd /faronear/
 mkdir bin
diff --git a/windows/GetColor.exe b/windows/GetColor.exe
deleted file mode 100755
index 0656f54..0000000
Binary files a/windows/GetColor.exe and /dev/null differ
diff --git a/windows/add-ThisComputer-subfolders.reg b/windows/ThisComputer-add-subfolders.reg
similarity index 100%
rename from windows/add-ThisComputer-subfolders.reg
rename to windows/ThisComputer-add-subfolders.reg
diff --git a/windows/delete-ThisComputer-subfolders.reg b/windows/ThisComputer-delete-subfolders.reg
similarity index 100%
rename from windows/delete-ThisComputer-subfolders.reg
rename to windows/ThisComputer-delete-subfolders.reg
diff --git a/windows/linkd.exe b/windows/linkd.exe
deleted file mode 100755
index 41fb5a9..0000000
Binary files a/windows/linkd.exe and /dev/null differ
diff --git a/windows/use-classic-RightClickMenu.bat b/windows/right-click-classic.bat
similarity index 100%
rename from windows/use-classic-RightClickMenu.bat
rename to windows/right-click-classic.bat
diff --git a/windows/use-win11-RightClickMenu.bat b/windows/right-click-win11.bat
similarity index 100%
rename from windows/use-win11-RightClickMenu.bat
rename to windows/right-click-win11.bat