diff --git a/.gitignore b/.gitignore
index 047d7bb..f4094d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 backup/
+skel/.profile-local
+skel/.profile-private
diff --git a/README.md b/README.md
index 432d55d..3055f16 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,9 @@ Backing up original profile under /home/madumlao/Projects/madumlao-profile/backu
 '/home/madumlao/.zshrc' -> '/home/madumlao/Projects/madumlao-profile/backup/.zshrc'
 '/home/madumlao/.zshrc' -> 'Projects/madumlao-profile/skel/.zshrc'
 ~~~
+
+You can add custom variables on the current user by editing `.profile-local`.
+
+You can put passwords, keys, etc in `.profile-private`.
+
+Both files are force git-ignored. No other special protections are made to them.