diff --git a/conda.py b/conda.py
old mode 100644
new mode 100755
diff --git a/debian.sh b/debian.sh
new file mode 100755
index 0000000..234b80e
--- /dev/null
+++ b/debian.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# backup old config
+
+mkdir -p ~/matchyoubackup
+cd ~/matchyoubackup
+
+mkdir -p var/www
+mkdir -p var/lib
+mkdir -p usr/lib
+mkdir -p etc
+
+cp -rp /etc/nginx        etc       || true
+cp -rp /etc/mysql*       etc       || true
+cp -rp /etc/php*         etc       || true
+cp -rp /etc/apache2*     etc       || true
+mv /var/www/html     var/www       || true
+mv /var/lib/mysql    var/lib       || true
+mv /usr/lib/python3  usr/lib       || true
+mv ~/go              go            || true
+
+# mess up the the development environment
+# LNMP python3 golang C/C++
+apt purge -y nginx* apache2* mysql* mariadb* php* \
+             python3* \
+             golang* \
+             build-essential* *-dev gcc g++
diff --git a/father.py b/father.py
old mode 100644
new mode 100755
diff --git a/mother.py b/mother.py
old mode 100644
new mode 100755
diff --git a/mother.sh b/mother.sh
old mode 100644
new mode 100755