diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 deuxfleurs.fr
 =============
 
-*Many things are still missing here, including a proper documentation. Please stay nice, it is a volunter project. Feel free to open pull/merge requests to improve it. Thanks.*
+**OBSOLETION NOTICE:** We are progressively migrating our stack to NixOS, to replace Ansible. Most of the files present in this repository are outdated or obsolete,
+the current code for our infrastructure is at: <https://git.deuxfleurs.fr/Deuxfleurs/nixcfg>.
 
 ## Our abstraction stack
 
@@ -111,4 +112,4 @@ Now, to connect, do the following:
 
 ## Test cluster
 
-Configured machines available for testing are listed in the **[`test_cluster` Ansible inventory](./os/config/test_cluster.inventory.yml)**.
\ No newline at end of file
+Configured machines available for testing are listed in the **[`test_cluster` Ansible inventory](./os/config/test_cluster.inventory.yml)**.