diff --git a/README.md b/README.md
new file mode 100644
index 00000000..81c2d306
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+# kat's nixfiles
+
+To provision a new host:
+
+* add that host to the SSH config in programs.ssh
+* create a config for that host that contains a meta.deploy.ssh.host
+* run `nyx install <hostname>`.
+
+To rebuild a host:
+
+* run `nyx build <hostname> <method>` where method is optional, can be... switch or boot or such.
diff --git a/nyx b/nyx
index 2109a5dd..b07e30db 100755
--- a/nyx
+++ b/nyx
@@ -17,6 +17,7 @@ build() {
 }
 
 install() {
+    HOST=$1
     nix build -f . hosts.$HOST.config.system.build.toplevel
     CLOSURE=$(readlink result)
     nix-store --export $(nix-store -qR ./result) | ssh root@$HOST nix-store --import --store /mnt