diff --git a/build/nix/README.md b/build/nix/README.md
new file mode 100644
index 0000000..c07a382
--- /dev/null
+++ b/build/nix/README.md
@@ -0,0 +1,7 @@
+Useful commands:
+
+```
+cd build/nix
+nix flake update
+nix build
+```