From f99f5970824e210e84f9a766e2ea52d4af770182 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <Mic92@users.noreply.github.com>
Date: Tue, 21 Jul 2020 12:58:06 +0100
Subject: [PATCH] add `defaultSystems` examples (#3)

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 78c6f0e..77f9227 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,11 @@ flakes.
 ### `defaultSystems -> [<system>]`
 
 A list of all the systems supported by the nixpkgs project.
+Useful if you want add additional platforms:
+
+```nix
+eachSystem (defaultSystems ++ ["armv7l-linux"]) (system: { hello = 42; })
+```
 
 ### `eachSystem -> [<system>] -> (<system> -> attrs)`