diff --git a/roms/Makefile b/roms/Makefile
new file mode 100644
index 0000000..0114e6f
--- /dev/null
+++ b/roms/Makefile
@@ -0,0 +1,10 @@
+
+default:
+	@echo "nothing is build by default"
+	@echo "available build targets:"
+	@echo "  bios           -- update bios.bin (seabios)"
+
+bios: config.seabios
+	sh configure-seabios.sh $<
+	make -C seabios out/bios.bin
+	cp seabios/out/bios.bin ../pc-bios/bios.bin
diff --git a/roms/config.seabios b/roms/config.seabios
new file mode 100644
index 0000000..c373b87
--- /dev/null
+++ b/roms/config.seabios
@@ -0,0 +1 @@
+# empty, default config works for us
diff --git a/roms/configure-seabios.sh b/roms/configure-seabios.sh
new file mode 100755
index 0000000..98f59a2
--- /dev/null
+++ b/roms/configure-seabios.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+config="$1"
+make -C seabios clean distclean
+cp "$config" seabios/.config
+make -C seabios oldnoconfig