diff --git a/.gitignore b/.gitignore
index e54e175..dcc1bf5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@ loader/tools/cc1541/cc1541
 
 loader/samples/minexample/*.bak
 loader/samples/minexample/*.o
+loader/samples/minexample/*.zx0
+loader/samples/minexample/*.zx0.prg
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..90d6216
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "loader/samples/minexample/zx02"]
+	path = loader/samples/minexample/zx02
+	url = https://github.com/dmsc/zx02.git
diff --git a/loader/Makefile b/loader/Makefile
index a7cac7a..aa6c984 100755
--- a/loader/Makefile
+++ b/loader/Makefile
@@ -10,7 +10,7 @@ endif
 CD                 = cd
 PRINTF             = printf
 MKDIR              = mkdir
-GREP               = ggrep
+GREP               = grep
 ZIP                = zip -9 --must-match
 ZIP_NO_PATHS       = $(ZIP) -j
 ifneq ($(VERSION),)
diff --git a/loader/samples/minexample/badguyz.bin b/loader/samples/minexample/badguy.bin
similarity index 100%
rename from loader/samples/minexample/badguyz.bin
rename to loader/samples/minexample/badguy.bin
diff --git a/loader/samples/minexample/badguy.zx0 b/loader/samples/minexample/badguy.zx0
deleted file mode 100644
index 678e4f8..0000000
Binary files a/loader/samples/minexample/badguy.zx0 and /dev/null differ
diff --git a/loader/samples/minexample/badguy.zx0.prg b/loader/samples/minexample/badguy.zx0.prg
deleted file mode 100644
index 747c87d..0000000
Binary files a/loader/samples/minexample/badguy.zx0.prg and /dev/null differ
diff --git a/loader/samples/minexample/conv_zx0.sh b/loader/samples/minexample/conv_zx0.sh
deleted file mode 100644
index 2cb2dd1..0000000
--- a/loader/samples/minexample/conv_zx0.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-zx02/zx02 badguyz.bin badguy.zx0
-printf "\x00\x80" > badguy.zx0.prg
-cat badguy.zx0 >> badguy.zx0.prg
-python3 aart_lz.py tilemap.bin tilemap.bin.lz
-zx02/zx02 title_320-prepared.bin title_320-prepared.zx0
-printf "\x00\x80" > title_320-prepared.zx0.prg
-cat title_320-prepared.zx0 >> title_320-prepared.zx0.prg
-zx02/zx02 tower.bin tower.zx0
-printf "\x00\x80" > tower.zx0.prg
-cat tower.zx0 >> tower.zx0.prg
-zx02/zx02 tower_beam.bin tower_beam.zx0
-printf "\x00\x80" > tower_beam.zx0.prg
-cat tower_beam.zx0 >> tower_beam.zx0.prg
-zx02/zx02 field.bin field.zx0
-printf "\x00\x80" > field.zx0.prg
-cat field.zx0 >> field.zx0.prg
-zx02/zx02 falling_star.bin falling_star.zx0
-printf "\x00\x80" > falling_star.zx0.prg
-cat falling_star.zx0 >> falling_star.zx0.prg
-zx02/zx02 lilia.bin lilia.zx0
-printf "\x00\x80" > lilia.zx0.prg
-cat lilia.zx0 >> lilia.zx0.prg
-zx02/zx02 lilia_hero.bin lilia_hero.zx0
-printf "\x00\x80" > lilia_hero.zx0.prg
-cat lilia_hero.zx0 >> lilia_hero.zx0.prg
\ No newline at end of file
diff --git a/loader/samples/minexample/falling_star.zx0 b/loader/samples/minexample/falling_star.zx0
deleted file mode 100644
index a19134d..0000000
Binary files a/loader/samples/minexample/falling_star.zx0 and /dev/null differ
diff --git a/loader/samples/minexample/falling_star.zx0.prg b/loader/samples/minexample/falling_star.zx0.prg
deleted file mode 100644
index 9324e8d..0000000
Binary files a/loader/samples/minexample/falling_star.zx0.prg and /dev/null differ
diff --git a/loader/samples/minexample/field.zx0 b/loader/samples/minexample/field.zx0
deleted file mode 100644
index 1af5fd0..0000000
Binary files a/loader/samples/minexample/field.zx0 and /dev/null differ
diff --git a/loader/samples/minexample/field.zx0.prg b/loader/samples/minexample/field.zx0.prg
deleted file mode 100644
index ccc510b..0000000
Binary files a/loader/samples/minexample/field.zx0.prg and /dev/null differ
diff --git a/loader/samples/minexample/lilia.zx0 b/loader/samples/minexample/lilia.zx0
deleted file mode 100644
index 03a4acb..0000000
Binary files a/loader/samples/minexample/lilia.zx0 and /dev/null differ
diff --git a/loader/samples/minexample/lilia.zx0.prg b/loader/samples/minexample/lilia.zx0.prg
deleted file mode 100644
index 0e0ffc0..0000000
Binary files a/loader/samples/minexample/lilia.zx0.prg and /dev/null differ
diff --git a/loader/samples/minexample/lilia_hero.zx0 b/loader/samples/minexample/lilia_hero.zx0
deleted file mode 100644
index 3eacdb1..0000000
Binary files a/loader/samples/minexample/lilia_hero.zx0 and /dev/null differ
diff --git a/loader/samples/minexample/lilia_hero.zx0.prg b/loader/samples/minexample/lilia_hero.zx0.prg
deleted file mode 100644
index 3220173..0000000
Binary files a/loader/samples/minexample/lilia_hero.zx0.prg and /dev/null differ