diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0847fef
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+**/*.ksm
diff --git a/boot/rocket.ks b/boot/rocket.ks
index e354755..166229e 100644
--- a/boot/rocket.ks
+++ b/boot/rocket.ks
@@ -1,13 +1,10 @@
 // rocketOS bootstrapping sequence
 
 // Install software.
-compile "0:/os/rocketos" to "1:/boot/rocketos".
-compile "0:/lib/navigation" to "1:/lib/navigation".
-compile "0:/lib/throttle" to "1:/lib/throttle".
-compile "0:/launch" to "1:/launch".
-compile "0:/nextnode" to "1:/nextnode".
+runpath("0:/bootstrap/rocket").
 
 // Set OS to boot and restart.
-set core:bootfilename to "boot/rocketos".
+set core:bootfilename to "/ui/rocket".
 
+deletepath("/boot/rocket").
 reboot.
diff --git a/bootstrap/rocket.ks b/bootstrap/rocket.ks
new file mode 100644
index 0000000..e897c91
--- /dev/null
+++ b/bootstrap/rocket.ks
@@ -0,0 +1,5 @@
+compile "0:/ui/rocket" to "1:/ui/rocket".
+compile "0:/lib/navigation" to "1:/lib/navigation".
+compile "0:/lib/throttle" to "1:/lib/throttle".
+compile "0:/launch" to "1:/launch".
+copypath("0:/nextnode", "1:/nextnode"). // smaller when compiled
diff --git a/nextnode.ks b/execnode.ks
similarity index 100%
rename from nextnode.ks
rename to execnode.ks
diff --git a/launch.ks b/launch.ks
index da057d8..90c7a13 100644
--- a/launch.ks
+++ b/launch.ks
@@ -70,7 +70,7 @@ until SHIP:ORBIT:APOAPSIS > 80000 {
 
 SHIP:ADD(CreateCircularizationNode(SHIP:ORBIT:ETA:APOAPSIS)).
 
-print "Releasing controls. Good luck, Kerman!".
+print "Releasing controls. Circularization maneuver added. Good luck, Kerman!".
 set SHIP:CONTROL:PILOTMAINTHROTTLE to 0.
 unlock THROTTLE.
 unlock STEERING.