diff --git a/README.md b/README.md
index 2bf70fe..3993ae1 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,11 @@ Don't worry, it only requires some basic knowledge about using the terminal and
 
 ## Customization
 
-The easiest way to start customizing is by looking at and modifying `recipe.yml`.
+The easiest way to start customizing is by looking at and modifying `recipe.yml`. It's documented using comments and should be pretty easy to understand.
+
+For the base-container field, you can use any other native container image. You will get all the features of that image, plus the ones added here! Check out the [uBlue images list](https://ublue.it/images/) to decide what to use!
+
+If you want to add custom configuration files, you can just add them in the `etc` directory. If you need to add other directories, you can look at the Containerfile to see how it's done. Writing to any directories under `/var` in Fedora Silverblue are not supported and will not work, as those are user-managed.
 
 ## Installation