diff --git a/README.md b/README.md
index 0f983b4..634f8a7 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,11 @@
 # Simple Archiver
 
+This program exists because I could not get `tar` or `ar` to compile with
+[Cosmopolitan](https://justine.lol/cosmopolitan/index.html). Thus, this
+archiver will be written with support for Cosmopolitan in mind. This means
+sticking to the C programming language and possibly using Cosmopolitan-specfic
+API calls.
+
 ## LICENSE Information
 
 Uses the [Apache License 2.0](https://choosealicense.com/licenses/apache-2.0).