diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000000000000000000000000000000000..fe0c3acb05f56353cf2544bc41e519591a7c58df
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,52 @@
+# Contributing
+
+When contributing to this repository, please first discuss the change you wish to make via issue and
+via the [forum](https://forum.duniter.org) before making a change.
+
+Please note we have a specific workflow, please follow it in all your interactions with the project.
+
+## Workflow
+
+- You must create an issue for each feature you wish to develop, with a precise title and a
+  description of your feature. Then, assign it to yourself and click on the button
+  **`Create a merge request`**. GitLab will create a branch dedicated to the issue as well as a
+  *Work in Progress* merge request of this branch into the main branch (`dev`).
+- Please use tags to specify feature domains and concerned crates.
+- Never contribute to a branch whose issue has not been assigned to you! If the contributor make a 
+  `git rebase` your commit will be lost !
+- Before you push your commit: 
+  1.  Document your code.
+  1.  Write unit tests, and verify that they **all** pass.
+  1.  Made a git rebase to make your history clean.
+
+      ```bash
+      # Make an alias
+      git config --global alias.tidy "rebase -i @{upstream}"
+      # Rebase your last commits since last push
+      git tidy
+      ```
+
+## Merge Process
+
+1.  Ensure any install or build dependencies are removed before the end of the layer when doing a 
+    build.
+
+1.  Ensure you rebased your branch on the latest `dev` commit to avoid any merge conflicts.
+
+1.  Update the README.md with details of changes to the interface, this includes new environment 
+    variables, exposed ports, useful file locations and container parameters.
+
+1.  Increase the version numbers in any examples files and the README.md to the new version that this
+    Pull Request would represent. The versioning scheme we use is [SemVer](http://semver.org/) :
+
+    If the module is in developement stage, its format is 0.X.Y. In production stage, it's X.Y.Z.
+
+    - When a API breaking change is made, X must be incremented.
+    - If new features are added without breaking the API, Y must be incremented.
+    - If the change is a quick fix of a production version, Z is incremented.
+
+    Your module should always start with 0.1.0 version and only pass in 1.0.0 when no big changes are
+    planned. There is no need to rush a 1.0.0, take your time :)
+
+1.  You may merge the Merge Request in once you have the sign-off of two other developers. If you 
+    do not have permission to do that, you may request the second reviewer to merge it for you.
\ No newline at end of file