diff --git a/.gitignore b/.gitignore
index 5761abc..1acae15 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 *.o
+roms/*.bin
+floatbus/cfg
diff --git a/floatbus/build b/floatbus/build
index e6e326d..995c765 100755
--- a/floatbus/build
+++ b/floatbus/build
@@ -3,8 +3,13 @@ set -euo pipefail
 set -x
 export ACME="$HOME/gh/acme/ACME_Lib"
 cp ../dsk/blank.dsk floatbus.dsk
+# Convert to binary HELLO.
+# See https://groups.google.com/d/topic/comp.sys.apple2.programmer/oEVsfLpZGvE
+printf '\x34' | dd conv=notrunc of=floatbus.dsk bs=1 seek=$((0x0d42))
+
 acme apple_split_1.asm
 applecommander -d floatbus.dsk HELLO || echo '(No HELLO to delete)'
-applecommander -d floatbus.dsk BHELLO || echo '(No HELLO to delete)'
-applecommander -p floatbus.dsk HELLO A < hello.bas.bin
-applecommander -p floatbus.dsk BHELLO B 0x6000 < apple_split_1.o
+applecommander -p floatbus.dsk HELLO B 0x6000 < apple_split_1.o
+
+# On my computer, run mame like this:
+# mame -rompath ~/mame/roms/ apple2ee -flop1 ./floatbus.dsk 
diff --git a/floatbus/floatbus.dsk b/floatbus/floatbus.dsk
index b652a1a..9dd3681 100644
Binary files a/floatbus/floatbus.dsk and b/floatbus/floatbus.dsk differ
diff --git a/floatbus/hello.bas.bin b/floatbus/hello.bas.bin
deleted file mode 100644
index af84588..0000000
Binary files a/floatbus/hello.bas.bin and /dev/null differ