diff --git a/README.md b/README.md
index 5a5d515..8cebd56 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,11 @@ to the `imports` attribute of your `configuration.nix`, like this:
 ```
 
 ## Caveats
-Keep in mind that this workaround disables encoding conversion to/from the
-ISO-2022-CN-EXT Chinese text encoding. If this is something you or your users
-need, you cannot apply this workaround or things will break.
+- Keep in mind that this workaround disables encoding conversion to/from the
+  ISO-2022-CN-EXT Chinese text encoding. If this is something you or your users
+  need, you cannot apply this workaround or things will break.
+- This will make your computer build `glibc` by itself, which, depending on
+  your hardware, may take a long time. If your servers don't have a lot of
+  computing resources, consider building the patched version of glibc on your
+  local computer and then pushing its closure to your server. If you understand
+  what I just said, you'll know what to do.