diff --git a/project.el b/project.el
index 39587b6..8f2c843 100644
--- a/project.el
+++ b/project.el
@@ -1,3 +1,5 @@
+;; sign it with
+;; gpg --local-user yann@esposito.host --output project.el.sig --detach-sign project.el
 (setq domainname "https://her.esy.fun")
 (setq base-dir (concat (projectile-project-root) "src"))
 (setq publish-dir (concat (projectile-project-root) "_site"))
@@ -35,6 +37,7 @@
               (append
                '("<a href=\"/index.html\">Home</a>"
                  "<a href=\"/archive.html\">Posts</a>"
+                 "<a href=\"/slides.html\">Slides</a>"
                  "<a href=\"/about-me.html\">About</a>")
                lst)
               " | ")
diff --git a/project.el.sig b/project.el.sig
index dffc056..de6514b 100644
Binary files a/project.el.sig and b/project.el.sig differ
diff --git a/sign-project.sh b/sign-project.sh
new file mode 100755
index 0000000..1a1a7ff
--- /dev/null
+++ b/sign-project.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+signer=yann@esposito.host
+
+gpg --local-user $signer --output project.el.sig --detach-sign project.el
diff --git a/src/index.org b/src/index.org
index b98e3a6..74d5029 100644
--- a/src/index.org
+++ b/src/index.org
@@ -10,6 +10,9 @@
 
 Welcome to my personal website.
 
+- [[file:archive.org][articles]]
+- [[file:slides.org][presentations]]
+
 Here I will talk mostly about the life of a software developer.
 So programming, functional programming in particular.
 
diff --git a/src/slides.org b/src/slides.org
new file mode 100644
index 0000000..a5fcf2a
--- /dev/null
+++ b/src/slides.org
@@ -0,0 +1,16 @@
+#+TITLE: Slides
+#+KEYWORDS: programming, presentations, slides
+#+AUTHOR: Yann Esposito
+#+EMAIL: yann@esposito.host
+#+DESCRIPTION:
+#+LANGUAGE: en
+#+LANG: en
+#+OPTIONS: H:5
+#+STARTUP: showeverything
+
+* Slides
+
+- [2018-10-25 Thu] [[file:slides/git-project-manager.org][Git Project Manager]] is a talk I made for the "Commission Open Source"
+  about how to gain back autonomy with git by providing most features
+  Github propose just with a few conventions. I even written a tool to help
+  manage issues, code review, git hosting, etc...