diff --git a/.gitignore b/.gitignore
index 8c58437..d163863 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
-*.svg
-*.png
\ No newline at end of file
+build/
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..1421717
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,14 @@
+suits := puppets bread wheels blades chairs cards
+values := 1 2 3 4 5 6 traveler knight wizard noble
+cards := $(foreach suit,$(suits),$(foreach value,$(values),$(value)-$(suit)))
+
+svgdeck: $(foreach card,$(cards),build/$(card).svg)
+
+pngdeck: $(foreach card,$(cards),build/$(card).png)
+
+build/%.svg: deck.asy cards.asy numerals.asy $(foreach suit,$(suits),$(suit).asy)
+	mkdir -p build
+	sh -c "buf_size=5000000 asy -globalwrite deck.asy"
+
+build/%.png: build/%.svg
+	convert -density 512 -background transparent $< $@
diff --git a/deck.asy b/deck.asy
index 2aa9af8..d09ba1f 100644
--- a/deck.asy
+++ b/deck.asy
@@ -28,6 +28,6 @@ for (int suit = 0; suit <= 5; ++suit) {
     else if (value == WIZARD) { value_str = "wizard"; }
     else if (value == NOBLE) { value_str = "noble"; }
     else { value_str = format("%d", value); }
-    shipout(value_str+"-"+suit_str, "svg");
+    shipout("build/"+value_str+"-"+suit_str, "svg");
   }
 }