diff --git a/README.md b/README.md
index 4c92db68..3bea72bc 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,15 @@
 # Nidus Sync
 
 This is the software that powers [Nidus Cloud Sync](https://sync.nidus.cloud).
+
+## Building from source
+
+First, you'll need [Nix](https://nix.dev).
+
+Then:
+
+```sh
+nix develop
+go build .
+```
+