diff --git a/Makefile b/Makefile
index 07168f7..402ce3e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 export PATH := $(PATH):bin
 SRCS := $(sort $(wildcard *.md))
+SRCS := $(filter-out README.md, $(SRCS))
 DEST := $(notdir $(PWD))
 
 .PHONY: static
diff --git a/python-perfs/README.md b/python-perfs/README.md
index 05368d3..6102715 100644
--- a/python-perfs/README.md
+++ b/python-perfs/README.md
@@ -1,5 +1,7 @@
 # Python Performances
 
+Les slides : https://mdk.fr/python-perfs
+
 ## Description
 
 Destinée aux développeurs Python aguerris, cette formation approche
diff --git a/python-perfs/perfs.md b/python-perfs/perfs.md
index 41a68c2..b1c5c8b 100644
--- a/python-perfs/perfs.md
+++ b/python-perfs/perfs.md
@@ -2,6 +2,8 @@
 
 par
 
+<!-- .slide: data-background="static/background.jpg" -->
+
 Julien Palard <julien@palard.fr>
 
 https://mdk.fr
diff --git a/python-perfs/static/background.jpg b/python-perfs/static/background.jpg
new file mode 120000
index 0000000..fbaf874
--- /dev/null
+++ b/python-perfs/static/background.jpg
@@ -0,0 +1 @@
+../../background.jpg
\ No newline at end of file