diff --git a/README.md b/README.md
index f5a1305..be1a097 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 # NixOS on Pinecube (Early work in progress)
 
-Build an SD card image with `./build.sh`.
-Prebuilt image [here](https://drive.google.com/file/d/1iXVv9R-33DoFKE-WSPZ4XoemhYPZPcU2/view?usp=sharing) (last updated 2020-11-21).
+Download / install Nix using the instructions (here)[https://nixos.org/download.html].
+Then, build an SD card image with `./build.sh`.
+Otherwise, a prebuilt image is available [here](https://drive.google.com/file/d/1iXVv9R-33DoFKE-WSPZ4XoemhYPZPcU2/view?usp=sharing) (last updated 2020-11-21).
 Decompress and flash with:
 ```shell
 $ cat ./result/sd-image/nixos-sd-image-21.03pre-git-armv7l-linux.img.zst | zstd -d | dd of=/dev/sdX bs=1024