diff --git a/README.md b/README.md
index 36d6c74..2d9089e 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,9 @@
 ### Embeding IFC5 Viewer within GitAec 
 
 * Sources can be find in the [ifcx branch](https://codeberg.org/rvba/forgejo/src/branch/ifcx) of GitAec
-* [gitaec-data-horse](http://localhost:3000/rvba/ifc-data-horse) 🐴
+* The viewer is based on IFC5 BuildingSmart experiment [with some modifications](https://gitaec.org/rvba/ifc5)
+
+**First experiments when a bit of the rail...**
 
 ![](images/gitifcx.png)