diff --git a/README.md b/README.md
index 79b88a0..127421a 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,16 @@
 
 Found https://docs.gtk.org/gtk4/getting_started.html and figured I would learn a thing.
 
+## prep
+
+I was working from debian 12/bookworm
+
+```shell
+sudo apt install build-essential libgtk-4-dev
+```
+
+## build
+
+```shell
+make
+```