diff --git a/README.md b/README.md
index 192314c..7117e4f 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,4 @@ version directly from source while building the portable zip. The tools are inst
 # Building from source
 
 * Building from source is done using our `bsys` build system. It only supports cross-compiling from Linux to Windows. So building the windows version from within windows is not supported. Well, it's not tested but possible in principle.
+* It's getting build by v6 of bsys, located here: [bsys6](https://gitlab.com/librewolf-community/browser/bsys6).