diff --git a/README.md b/README.md
index c63d989..3760ba8 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ MicroSD card as boot and OS.
 
 ### Zeroth milestone
 
-- [ ] SSH daemon
+- [X] SSH daemon
 - [ ] User who can act as a local admin
 
 ### First milestone
@@ -34,7 +34,15 @@ MicroSD card as boot and OS.
 To build the SD image:
 
 ```bash
+# building the NixOS portions
 nix build .#nixosConfigurations.chopper.config.system.build.sdImage
+cp result/sd-image/*.zst . # note it will be write-protected
+nix-shell -p zstd --run "unzstd *.zst"
+sudo dd if=$(echo -n *img) of=/dev/sda status=progress bs=4096
+# build uboot
+nix-build '<nixpkgs>' --argstr system aarch64-linux -A ubootRockPro64 --out-link ubootRockPro64
+sudo dd if=ubootRockPro64/idbloader.img of=/dev/sda conv=fsync,notrunc bs=512 seek=64
+sudo dd if=ubootRockPro64/u-boot.itb of=/dev/sda conv=fsync,notrunc bs=512 seek=16384
 ```
 
 Further instructions can be found on these pages: