diff --git a/README.md b/README.md
index 582cae6..6a19069 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,24 @@ rsync --compress --recursive ./tiles/cyclosm debian@juniperus.champs-libres.be:/
 ```
 
 
+#### Things to do for the osmbe style
+
+##### Clip a europe.pbf file with osmium
+
+We want a buffer around Belgium with some generated tiles. To do so, we clip a larger pbf file like `europe.osm.pbf` with a poly file, which can be generated with http://polygons.openstreetmap.fr/get_poly.py?id=52411&params=0.150000-0.005000-0.005000
+
+Then, we clip the europe pbf with osmium:
+
+```bash
+osmium extract --strategy smart --polygon=polyBEbuffer.poly --output=belgium-buffer.osm.pbf --overwrite /mnt/tera/Projets/OSM/Data/europe-latest.osm.pbf
+```
+
+The `poly` file is kept in the pbf folder.
+
+##### Generate a tiles.list file with the buffer around Belgium
+
+This file was generated with the script `utils/generate-tiles-list-buffer.py`. The result is also kept in this repo in `utils/tiles-BE-buffer.list`.
+
 #### Troubleshooting
 
 ##### Role rendered already exists