diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1c03bcefb..b3def0962 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -215,7 +215,9 @@ You can see the most common questions and problems on the [Developer FAQ](https:
 
 ## Porting Software
 
-You can read how to use the Cookbook recipe system to port applications on the [Porting Applications using Recipes](https://doc.redox-os.org/book/porting-applications.html) page.
+You can read how to use the Cookbook recipe system to port applications on the [Application Porting](https://doc.redox-os.org/book/porting-applications.html) page.
+
+**Always verify if a recipe for your program or library already exist before porting to not break the build system with a recipe duplication or waste time.**
 
 ## Libraries and APIs
 
diff --git a/config/x11.toml b/config/x11.toml
index 18b11a138..9a3f24f62 100644
--- a/config/x11.toml
+++ b/config/x11.toml
@@ -11,6 +11,7 @@ filesystem_size = 2048
 
 # Package settings
 [packages]
+feh = {}
 gtk3 = {}
 htop = {}
 libnettle = {}
@@ -97,4 +98,5 @@ X "${DISPLAY}" -verbose 6 &
 sleep 1
 twm &
 xterm &
+feh --bg-max --no-fehbg --randomize /ui/background.jpg &
 """
diff --git a/relibc b/relibc
index c2eed49e2..a33bb699e 160000
--- a/relibc
+++ b/relibc
@@ -1 +1 @@
-Subproject commit c2eed49e2db695b4da09a7becd096183b809b075
+Subproject commit a33bb699e69e023a9ed070c758aeeafa50913814