diff --git a/README.md b/README.md
index abbeb58..50cc8fd 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,9 @@
-Nix overlay with BSC packages.
+# Jungle
+
+This repository provides two components that can be used independently:
+
+- A Nix overlay with packages used at BSC (formerly known as bscpkgs). Access
+  them directly with `nix shell .#<pkgname>`.
+
+- NixOS configurations for jungle machines. Use `nixos-rebuild switch --flake .`
+  to upgrade the current machine.