diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..e54c32e9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,81 @@
+# Not sure what patterns to apply
+# So ignoring all generated files explicitly
+
+**/*.[Bb][Ii][Nn]
+**/*.[Cc][Oo][Mm]
+**/*.[Rr][Oo][Mm]
+**/*.com
+**/*.eeprom
+**/*.hex
+**/*.img
+**/*.lib
+**/*.lst
+**/*.o
+**/*.prn
+**/*.rel
+**/*.sym
+**/*.sys
+**/*.tmp
+**/*/font*.asm
+
+Binary/**/*.mym
+Binary/**/*.pt3
+
+Source/**/eeprom
+Source/Apps/Assign.com
+Source/Apps/FDU/FDU.COM
+Source/Apps/Format.com
+Source/Apps/IntTest.com
+Source/Apps/Mode.com
+Source/Apps/OSLdr.com
+Source/Apps/RTC.com
+Source/Apps/SysCopy.com
+Source/Apps/SysGen.com
+Source/Apps/Talk.com
+Source/Apps/Timer.com
+Source/Apps/Tune/Tune.com
+Source/BPBIOS/bpsys.bak
+Source/BPBIOS/bpsys.dat
+Source/BPBIOS/def-ww.lib
+Source/CPM3/bios3.spr
+Source/CPM3/bnkbios3.spr
+Source/CPM3/gencpm.dat
+Source/CPM3/options.lib
+Source/CPM3/zpmbios3.spr
+Source/HBIOS/Blank512KB.dat
+Source/HBIOS/build.inc
+Source/Images/blank144
+Source/Images/blankhd
+Source/Prop/Spin/ParPortProp.list
+Source/Prop/Spin/PropIO.list
+Source/Prop/Spin/PropIO2.list
+Source/ZPM3/bnkbios3.spr
+Source/ZPM3/gencpm.com
+Source/ZPM3/gencpm.com
+Source/ZPM3/gencpm.dat
+
+Tools/Linux
+Tools/unix
+
+!Source/Apps/FAT/FAT.COM
+!Source/BPBIOS/bpbuild.com
+!Source/BPBIOS/movp112.com
+!Source/BPBIOS/Z34RCP11/cledinst.com
+!Source/BPBIOS/Z34RCP11/cledsave.com
+!Source/Fonts
+!Source/Images/**/*.[Cc][Oo][Mm]
+!Source/RomDsk/**/*.[Cc][Oo][Mm]
+!Source/UBIOS/FSFAT.BIN
+!Source/UBIOS/UNA-BIOS.BIN
+!Source/ZCCP/*.[Cc][Oo][Mm]
+!Source/ZCPR-DJ/*.[Cc][Oo][Mm]
+!Source/ZPM3/*.[Cc][Oo][Mm]
+!Source/ZSDOS/*.[Cc][Oo][Mm]
+!Tools/cpm/bin
+!Tools/unix/zx
+!Tools/zx
+
+Source/ZPM3/gencpm.com
+Source/ZPM3/startzpm.com
+Source/ZPM3/zccp.com
+Source/ZPM3/zpmldr.com
diff --git a/Source/Apps/Tune/Makefile b/Source/Apps/Tune/Makefile
index 3c4d8dcd..3aa5c338 100644
--- a/Source/Apps/Tune/Makefile
+++ b/Source/Apps/Tune/Makefile
@@ -6,6 +6,7 @@ include $(TOOLS)/Makefile.inc
 
 Tune.com: Tune.asm
 	$(TASM) Tune.asm Tune.com
-
-all::
-	cp Tunes/* $(DEST)/Tunes
+
+all::
+	mkdir -p $(DEST)/Tunes
+	cp Tunes/* $(DEST)/Tunes
diff --git a/Source/HBIOS/Build.sh b/Source/HBIOS/Build.sh
index 32fb786f..697354dd 100755
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@@ -81,7 +81,7 @@ EOF
 echo "checking prerequisites"
 for need in ../CPM22/cpm_$BIOS.bin ../ZSDOS/zsys_$BIOS.bin \
 	../Forth/camel80.bin font8x11c.asm font8x11u.asm font8x16c.asm \
-	font8x16u.asm font8x8c.asm font8x8u.asm ; do 
+	font8x16u.asm font8x8c.asm font8x8u.asm ; do
 	if [ ! -f $need ] ; then
 		echo $need missing
 		exit 2
@@ -124,8 +124,10 @@ if [ -d ../RomDsk/$platform ] ; then
 fi
 
 echo "adding apps to $romdiskfile"
-for i in assign fdu format mode osldr rtc survey syscopy sysgen talk timer xm inttest ; do
+for i in $Apps ; do
+	set +e
 	f=$(../../Tools/unix/casefn.sh ../../Binary/Apps/$i.com)
+	set -e
 	if [ -z "$f" ] ; then
 		echo " " $i "not found"
 	else