diff --git a/PACKAGING.md b/PACKAGING.md
index 4cea7cf6a..82c7c5673 100644
--- a/PACKAGING.md
+++ b/PACKAGING.md
@@ -117,3 +117,11 @@ relevant to package maintainers:
   often necessary for system packages to specify a specific minimum Linux
   version, glibc, etc. Run `zig targets` to a get a full list of available
   targets.
+
+> [!WARNING]
+>
+> **The GLFW runtime is not meant for distribution.** The GLFW runtime
+> (`-Dapp-runtime=glfw`) is meant for development and testing only. It is
+> missing many features, has known memory leak scenarios, known crashes,
+> and more. Please do not package the GLFW-based Ghostty runtime for
+> distribution.