diff --git a/README.md b/README.md
index f0dc770..5bad5c6 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 highly experimental pre-alpha-grade opensuse bootc tests.
 
+this doesn't quite work yet, as it's dependent on some behavioural changes from b-i-b upstream, however if this is built purely-manually it will probably work.
+
 ## refs:
 
 * github.com/m1cha/bootc-archlinux: concept (and tooling) from which this entire repo is derived.